Regional Migration Forecast: 17-24 March 2017

American White Pelican. Thomas Jones/Macaulay Library. eBird S35203732.

Continental Summary

A week of often favorable migration conditions punctuated with scattered precipitation will see light to moderate flights in many areas of the West that will feature American White Pelican, Black-chinned Hummingbird, Pacific-slope Flycatcher, Orange-crowned Warbler, White-crowned Sparrow, and Hooded Oriole, while cooler temperatures in the East alternate with some pulses of marginally favorable migration conditions that feature light to moderate movements of Common Loon, Double-crested Cormorant, Broad-winged Hawk, Northern Flicker, Purple Martin, Golden-crowned Kinglet, and Prairie Warbler.

Arrows show wind speed and direction (arrow points in the direction to which wind is blowing) 100 m above ground level. Areas with southerly winds are colored red; northerly winds colored blue. Accumulated precipitation (in 6 hour intervals) is green, outlined by white. Broadly speaking, areas of the map in red will experience conditions that are favorable for migration, and areas where red and green (and red and blue) intersect and overlap may experience migrant concentrations and fallouts as migrants interact with precipitation.

We use data collected by eBird users help make more accurate forecasts. If you enjoy the predictions contained in these posts, please consider submitting your own bird sightings to eBird to even further improve the content. Every observation counts, whether it be a single bird at a feeder in your backyard, or an entire day spent in a national park. To get started with eBird, head on over to the site!

Please note that photographs and other digital media showing birds come from the Macaulay Library, which receives credit along with the photographer/observer in the media caption as part of a new initiative that allows public contribution, access and use of natural history media.

Finally, and new for Spring 2017, our friend Kyle Horton of the Radar Aeroecology Lab at Oklahoma University created a new set of images depicting spring bird movements in the Gulf of Mexico region as part of an analysis that he is leading as part of our ongoing collaboration. This feature appears in the Gulf Coast and Southeast region forecast.

Need a review of our definitions for regions, species on the move, and migration amounts? Please visit this link.

Quick Links to Regions

Upper Midwest and NortheastBirdCast Upper Midwest and Northeast Region Gulf Coast and SoutheastBirdCast Upper Southeast Region
Great Plainsbirdcast_plains West
BirdCast West Region

Upper Midwest and Northeast

Low pressure moving through the region brings another wintry blast early in the weekend, but signs of movement return by Sunday night. Southerly flow in the Midwest will bring light to moderate flights, with some areas reaching locally heavy intensities. This pulse will be short-lived, as a cool air mass follows with northerly flow and shuts down migrants in all but the easternmost reaches of the region. And it is not until Wednesday and Thursday that warmer air returns, again to the Midwest where moderate to locally heavy flights will occur. These conditions spread east for Thursday night, when much of the region east of New England will see favorable conditions for moderate flights. Note that some of these flights may overlap with precipitation, making for local concentrations and fallouts of waterbirds, in particular, on inland lakes and early season landbird migrants in appropriate habitat.

Northern Flicker (Yellow-shafted). Tony Gazso/Macaulay Library. eBird S35004491.

Species on the Move

Beginning Arrivals What is this?

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Purple Finch * 2/2 4/12 4/25 5/7 5/16
Northern Harrier * 2/20 3/30 4/8 4/23 5/5
American Kestrel ** 2/26 3/30 4/12 4/28 5/11
Fox Sparrow *** 3/1 3/21 4/2 4/19 4/29
Great Blue Heron *** 3/2 3/21 5/14 5/28 6/7
Pied-billed Grebe *** 3/3 3/25 4/9 4/27 5/12
Wilson's Snipe ** 3/7 3/29 4/14 5/1 5/12
Cooper's Hawk * 3/11 4/13 4/24 5/13 5/25
Eastern Phoebe ****! 3/12 3/26 4/13 5/27 6/6
Osprey *** 3/13 3/30 4/18 5/1 5/11
Brown-headed Cowbird ****! 3/14 4/8 5/2 5/17 After Jun 30
Blue-winged Teal *** 3/15 4/1 4/18 5/3 5/16
Pectoral Sandpiper ** 3/17 3/29 4/16 5/23 6/5
Tree Swallow ****! 3/17 4/1 5/9 5/25 After Jun 30
Northern Gannet * 3/17 3/26 4/6 4/19 4/28
Bonaparte's Gull *** 3/18 3/28 4/11 4/24 5/4
Double-crested Cormorant *** 3/19 3/31 4/19 6/1 6/11
Great Egret *** 3/19 3/30 5/14 5/27 6/4
Common Loon *** 3/20 3/30 4/11 4/23 5/2
Golden-crowned Kinglet *** 3/20 3/28 4/8 4/21 4/30
Laughing Gull ** 3/20 4/2 5/17 5/30 6/7
Brown Creeper *** 3/21 3/30 4/10 4/25 5/6
Northern Flicker ****! 3/22 4/4 4/21 5/6 5/18
Winter Wren ** 3/22 3/31 4/14 4/27 5/8
Black-crowned Night-Heron * 3/23 5/3 5/21 5/28 6/2
Greater Yellowlegs *** 3/23 4/9 4/27 5/16 6/1
Yellow-bellied Sapsucker *** 3/23 4/1 4/13 4/25 5/3
Vesper Sparrow ** 3/23 4/2 6/14 After Jun 30 -
Belted Kingfisher *** 3/24 4/4 4/19 5/5 5/20
Snowy Egret ** 3/24 4/3 5/22 6/2 6/9
Purple Martin *** 3/25 4/9 5/18 6/1 6/10
Forster's Tern ** 3/26 4/25 5/10 5/25 6/4
Forster's Tern ** 3/26 4/25 5/10 5/25 6/4
Glossy Ibis * 3/26 4/6 5/25 6/3 6/9
Pine Warbler *** 3/27 4/9 4/25 5/8 5/18

Peaking Arrivals

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Lesser Scaup *** 2/19 3/1 3/21 4/18 5/5
Bufflehead *** 2/21 3/2 3/28 4/21 5/6
Ruddy Duck * 2/21 3/2 4/1 4/25 5/10
Ring-necked Duck *** 2/20 3/3 3/23 4/16 5/1
American Coot ** 2/21 3/3 4/6 5/1 5/21
American Woodcock ** 2/20 3/3 3/21 4/6 6/3
Red-winged Blackbird *** 2/18 3/3 5/5 5/20 After Jun 30
Northern Shoveler *** 2/20 3/5 4/4 4/26 5/11
Killdeer *** 2/20 3/6 3/30 6/3 6/13
Common Grackle *** 2/19 3/6 5/14 6/6 After Jun 30
Green-winged Teal *** 2/20 3/7 3/31 4/24 5/10
Rusty Blackbird * 2/23 3/8 4/10 5/1 5/13
Horned Grebe ** 2/26 3/9 3/27 4/17 5/7
Great Blue Heron *** 3/2 3/21 5/14 5/28 6/7
Fox Sparrow *** 3/1 3/21 4/2 4/19 4/29
Pied-billed Grebe *** 3/3 3/25 4/9 4/27 5/12
Eastern Phoebe *** 3/12 3/26 4/13 5/27 6/6
Northern Gannet * 3/17 3/26 4/6 4/19 4/28

Beginning Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
American Tree Sparrow *** - - Before Feb 1 4/18 5/4
Dark-eyed Junco *** - 2/2 2/15 4/22 5/6
Brant * 2/19 2/24 3/4 5/26 6/4
Great Cormorant * 2/24 2/27 3/4 3/20 4/24
Surf Scoter * 2/23 2/27 3/5 4/19 4/28
Rough-legged Hawk * 2/21 2/26 3/5 3/21 4/9
Horned Lark ** 2/17 2/24 3/6 3/20 After Jun 30
Red-throated Loon * 2/21 2/26 3/7 4/20 4/30
Common Goldeneye *** 2/20 2/26 3/8 3/24 4/23
Snow Goose ** 2/15 2/25 3/9 3/26 4/13
Greater Scaup ** 2/20 2/27 3/9 4/18 4/30
Herring Gull *** 2/21 2/27 3/9 4/18 6/6
American Black Duck *** 2/20 2/26 3/10 4/16 4/26
Bald Eagle * 2/19 2/26 3/10 5/26 6/7
Northern Pintail ** 2/16 2/26 3/11 3/27 4/22
Canvasback ** 2/19 2/27 3/11 3/27 4/25
Tundra Swan ** 2/19 2/27 3/12 3/30 4/17
Redhead ** 2/19 2/27 3/12 3/27 4/28
Common Merganser *** 2/19 2/27 3/12 4/16 4/29
Ring-billed Gull *** 2/20 2/27 3/13 4/18 4/28
Red-breasted Merganser ** 2/20 2/27 3/14 4/21 5/5
American Wigeon *** 2/17 2/27 3/16 4/14 4/28
Gadwall ** 2/19 2/28 3/17 4/18 5/2
Hooded Merganser *** 2/20 3/2 3/18 4/8 4/24
Lesser Scaup *** 2/19 3/1 3/21 4/18 5/5
American Woodcock * 2/20 3/3 3/21 4/6 6/3
Ring-necked Duck *** 2/20 3/3 3/23 4/16 5/1
Horned Grebe *** 2/26 3/9 3/27 4/17 5/7

Ending Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Common Redpoll * - 2/2 2/15 3/9 5/2
Snow Bunting * - - Before Feb 1 3/10 4/5
Black Scoter * 2/23 2/27 3/5 3/18 6/1
Long-tailed Duck * 2/22 2/26 3/5 3/18 4/26
Horned Lark * 2/17 2/24 3/6 3/20 After Jun 30
Great Cormorant * 2/24 2/27 3/4 3/20 4/24
Rough-legged Hawk * 2/21 2/26 3/5 3/21 4/9
Common Goldeneye *** 2/20 2/26 3/8 3/24 4/23
Snow Goose ** 2/15 2/25 3/9 3/26 4/13
Northern Pintail *** 2/16 2/26 3/11 3/27 4/22
Canvasback ** 2/19 2/27 3/11 3/27 4/25
Redhead ** 2/19 2/27 3/12 3/27 4/28

Gulf Coast and Southeast

Moderate to locally heavy flights kick off the weekend in many areas of the region as southerly flow spawns exodus from the Gulf states. The remainder of the weekend will see these flights restricted primarily to areas west of the Mississippi as high pressure off the Atlantic Coast holds sway east of the Appalachians with easterly and northerly winds. A similar pattern returns for the work week, but a change is coming. By Thursday, southerly flow becomes more widespread across the region, including to areas of northern Central America, and moderate to heavy flights will follow suite. These flights will include one of the first evident trans-Gulf flights of the spring during the day on Friday. And with a forecast for a frontal boundary to reach the Texas coast on Friday, birders should be watchful for fallout and concentration conditions.

Prairie Warbler. Randy Harrod/Macaulay Library. eBird S35155007.

Beginning Arrivals What is this?

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Laughing Gull *** 2/20 4/6 4/17 5/2 5/12
Caspian Tern * 2/21 4/5 4/14 5/3 5/16
Dunlin * 2/22 4/5 4/20 5/24 6/7
Sanderling * 2/23 4/5 4/17 6/1 6/12
Ruddy Turnstone * 2/24 4/10 4/25 5/28 6/12
Willet ** 2/25 4/6 4/16 5/2 5/12
Royal Tern ** 2/25 4/5 4/16 5/1 5/11
Yellow-crowned Night-Heron ** 2/26 4/8 5/1 5/11 5/17
Black-bellied Plover * 2/27 4/11 4/24 5/13 5/30
Marbled Godwit * 2/27 4/2 4/13 4/30 5/10
Yellow-throated Warbler *** 2/27 3/22 4/10 4/24 After Jun 30
Least Sandpiper ** 2/28 4/20 5/1 5/18 5/29
Short-billed Dowitcher * 2/28 4/7 4/19 5/7 5/21
Long-billed Dowitcher * 2/28 4/11 4/21 5/7 5/18
Lesser Yellowlegs ** 2/28 4/11 4/23 5/12 5/24
Piping Plover * 3/3 4/5 4/15 5/2 5/11
Barn Swallow *** 3/3 3/21 5/2 5/17 5/27
Black-and-white Warbler *** 3/3 4/15 4/25 5/10 5/21
White-eyed Vireo *** 3/4 3/24 4/16 After Jun 30 -
Yellow-throated Vireo *** 3/12 3/30 4/21 After Jun 30 -
Cliff Swallow *** 3/14 3/29 5/10 5/21 After Jun 30
Blue-gray Gnatcatcher *** 3/14 3/27 4/10 4/21 After Jun 30
Ruby-throated Hummingbird *** 3/15 4/6 4/27 5/14 5/26
Ash-throated Flycatcher * 3/15 4/6 5/25 6/7 6/14
Scissor-tailed Flycatcher *** 3/15 3/27 5/9 5/24 6/2
Lark Sparrow ** 3/16 4/8 5/3 5/20 6/3
Swainson's Hawk *** 3/17 3/29 4/16 5/2 5/19
Gull-billed Tern ** 3/18 4/3 4/19 5/2 5/11
Broad-winged Hawk *** 3/19 3/29 4/13 4/25 After Jun 30
Sandwich Tern ** 3/20 4/5 4/18 5/2 5/11
House Wren ** 3/20 3/30 4/12 5/1 5/21
White-throated Sparrow *** 3/20 3/30 4/9 4/30 5/11
Cattle Egret *** 3/22 4/5 4/21 5/3 5/12
Prairie Warbler *** 3/22 4/2 4/16 4/28 After Jun 30
Chuck-will's-widow ** 3/22 4/8 4/28 6/19 After Jun 30
American Avocet * 3/24 4/4 4/18 5/5 5/19
Green Heron *** 3/25 4/8 5/2 5/13 5/21
Franklin's Gull ** 3/25 4/5 4/20 5/6 5/20
Franklin's Gull ** 3/25 4/5 4/20 5/6 5/20
Common Tern * 3/25 4/7 4/19 5/1 6/14
Worm-eating Warbler *** 3/25 4/5 4/18 5/2 5/11
Marsh Wren ** 3/26 4/6 4/17 5/3 5/13
Whimbrel ** 3/27 4/9 4/24 5/10 6/1
Merlin * 3/27 4/4 4/15 5/1 5/12

Peaking Arrivals

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Chipping Sparrow ** - 2/2 3/29 4/11 5/18
Brown Pelican * 2/20 2/27 4/14 4/30 5/10
Western Sandpiper * 2/22 3/2 4/10 5/19 6/1
Purple Martin ** 2/2 3/2 6/18 After Jun 30 -
Cedar Waxwing ** 2/21 3/2 3/28 5/20 5/29
Blue-winged Teal *** 2/20 3/4 4/7 5/4 5/26
Greater Yellowlegs * 2/23 3/4 4/5 5/5 5/21
Blue-headed Vireo * 2/24 3/4 4/8 5/15 5/26
Ruby-crowned Kinglet ** 2/25 3/4 3/24 4/20 5/4
Lincoln's Sparrow ** 2/24 3/6 4/15 5/6 5/19
Wilson's Plover * 2/27 3/10 4/21 5/5 5/13
Hermit Thrush * 3/3 3/10 3/20 4/10 4/25
Couch's Kingbird * 2/27 3/11 4/3 5/7 5/20
Northern Parula *** 2/21 3/11 4/19 After Jun 30 -
Golden-cheeked Warbler * 3/3 3/12 3/27 4/4 6/13
American Golden-Plover * 3/2 3/14 3/31 4/20 5/15
Pectoral Sandpiper * 3/4 3/15 4/29 5/18 5/29
Black-bellied Whistling-Duck ** 3/3 3/16 4/23 5/6 5/15
Black-necked Stilt *** 3/4 3/16 4/19 5/4 5/14
Black-chinned Hummingbird ** 3/5 3/16 5/5 5/21 6/1
Brown-headed Cowbird *** 3/1 3/17 4/30 5/15 After Jun 30
Northern Rough-winged Swallow *** 3/3 3/18 4/27 After Jun 30 -
Louisiana Waterthrush ** 3/8 3/19 4/5 4/16 6/2
Barn Swallow *** 3/3 3/21 5/2 5/17 5/27
Yellow-throated Warbler ** 2/27 3/22 4/10 4/24 After Jun 30
White-eyed Vireo *** 3/4 3/24 4/16 After Jun 30 -
Scissor-tailed Flycatcher *** 3/15 3/27 5/9 5/24 6/2
Blue-gray Gnatcatcher *** 3/14 3/27 4/10 4/21 After Jun 30

Beginning Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Rufous Hummingbird * - - Before Feb 1 3/31 4/14
Yellow-bellied Sapsucker *** - - Before Feb 1 3/31 4/20
Brown Creeper * - - Before Feb 1 3/30 4/11
Dark-eyed Junco *** - 2/2 2/16 4/3 4/13
Pine Siskin * - 2/2 2/17 5/11 5/24
Song Sparrow *** 2/20 2/22 2/26 3/29 4/15
Bufflehead ** 2/22 2/26 3/3 3/26 4/14
Sharp-shinned Hawk * 2/24 2/27 3/3 4/25 5/11
American White Pelican ** 2/20 2/25 3/4 3/22 4/27
Rusty Blackbird * 2/26 2/28 3/4 3/25 4/11
Gadwall *** 2/21 2/26 3/5 3/22 4/21
Lesser Scaup *** 2/20 2/25 3/5 3/21 4/17
American Kestrel *** 2/21 2/26 3/5 3/23 4/11
Green-winged Teal ** 2/20 2/26 3/6 4/15 4/26
Northern Harrier *** 2/22 2/27 3/6 4/22 5/6
Herring Gull * 2/22 2/27 3/6 4/26 5/8
Eastern Phoebe *** 2/19 2/25 3/6 3/20 3/31
Pied-billed Grebe *** 2/20 2/26 3/7 4/19 5/1
Horned Grebe * 2/22 2/27 3/7 3/24 4/14
Cinnamon Teal * 2/2 2/14 3/8 4/17 5/8
Northern Shoveler ** 2/22 2/27 3/8 4/23 5/21
Red-breasted Merganser * 2/20 2/26 3/8 4/21 5/3
American Bittern * 2/22 2/27 3/8 4/29 5/14
Bald Eagle ** 2/22 2/28 3/8 3/24 5/21
Belted Kingfisher *** 2/22 2/27 3/8 4/18 4/29
Golden-crowned Kinglet ** 2/24 3/1 3/8 3/29 4/14
Yellow-rumped Warbler *** 2/20 2/26 3/8 5/1 5/16
American Coot *** 2/20 2/27 3/9 4/22 5/10
Forster's Tern * 2/24 3/1 3/9 5/3 5/17
Winter Wren * 2/28 3/4 3/9 4/2 4/16
Great Blue Heron *** 2/21 2/27 3/10 3/21 5/26
Glossy Ibis * 2/20 2/27 3/10 3/25 4/24
Common Gallinule * 2/20 2/27 3/10 4/30 5/9
Wilson's Snipe ** 2/22 2/28 3/10 4/18 5/3
Bonaparte's Gull * 2/26 3/2 3/10 4/8 4/24
Palm Warbler *** 2/21 2/27 3/10 5/2 5/15
Common Loon * 3/1 3/4 3/11 4/18 5/3
Double-crested Cormorant *** 2/21 2/27 3/11 4/20 5/4
Northern Flicker *** 2/23 3/1 3/11 4/3 4/18
Cooper's Hawk * 2/23 3/2 3/12 4/27 5/19
Savannah Sparrow *** 2/23 3/1 3/12 5/8 5/21
Swamp Sparrow ** 2/24 3/2 3/12 4/25 5/8
Osprey *** 2/19 2/27 3/13 4/24 5/5
Long-billed Curlew * 2/19 2/27 3/13 4/27 5/13
Vesper Sparrow * 2/23 3/2 3/14 5/1 5/19
Tree Swallow ** 2/19 2/28 3/18 4/28 5/25
Spotted Towhee * 2/21 3/2 3/19 4/27 5/9
Hermit Thrush *** 3/3 3/10 3/20 4/10 4/25
Ruby-crowned Kinglet *** 2/25 3/4 3/24 4/20 5/4
Golden-cheeked Warbler * 3/3 3/12 3/27 4/4 6/13

Ending Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Snow Goose * - - Before Feb 1 2/3 3/22
Canvasback * - - Before Feb 1 2/3 3/24
Hooded Merganser *** - - Before Feb 1 2/3 3/25
American Pipit ** - - Before Feb 1 2/3 3/25
Orange-crowned Warbler *** - - Before Feb 1 2/3 5/11
Purple Finch * - 2/2 2/16 2/28 4/18
American Robin *** - 2/2 2/19 3/12 5/24
Northern Pintail ** - - Before Feb 1 3/13 3/24
Redhead ** 2/19 2/23 3/1 3/16 3/25
Ruddy Duck ** 2/21 2/25 3/3 3/17 4/26
Sandhill Crane *** 2/18 2/23 3/2 3/18 3/29
Fox Sparrow ** - - Before Feb 1 3/18 4/1
Harris's Sparrow * 2/20 2/24 3/2 3/18 5/6
American Wigeon ** 2/21 2/25 3/3 3/19 4/18
Ring-necked Duck *** 2/20 2/24 3/2 3/19 4/1
Ring-billed Gull *** 2/22 2/25 3/3 3/19 4/28
Eastern Phoebe *** 2/19 2/25 3/6 3/20 3/31
Lesser Scaup *** 2/20 2/25 3/5 3/21 4/17
Great Blue Heron *** 2/21 2/27 3/10 3/21 5/26
Gadwall *** 2/21 2/26 3/5 3/22 4/21
American White Pelican ** 2/20 2/25 3/4 3/22 4/27
American Kestrel *** 2/21 2/26 3/5 3/23 4/11
Horned Grebe * 2/22 2/27 3/7 3/24 4/14
Bald Eagle ** 2/22 2/28 3/8 3/24 5/21
Glossy Ibis * 2/20 2/27 3/10 3/25 4/24
Rusty Blackbird * 2/26 2/28 3/4 3/25 4/11
Bufflehead *** 2/22 2/26 3/3 3/26 4/14

Weekly mean spring nocturnal migration activity and direction of movement in the Gulf of Mexico region for the week of 16-22 March, 1995 to 2015. Circular buffers around radar stations represent migration activity scaled to radar reflectivity (a measure of biological activity), with weekly activity represented by size scaled to the activity at KCRP Corpus Christi and seasonal activity represented by colors scaled to the most intense movements of the spring period (L: light, M: moderate, H:heavy); arrows represent mean track direction (a measure of the direction birds are traveling) derived from radial velocity.

Great Plains

A blast of southerly wind on Saturday night will see moderate to locally heavy flights across the region. However, the extent of these flights diminishes significantly for Sunday and the beginning of the work week, as northerly flow and cooler conditions return to shut down most movements. Some areas of the southern Plains will see continued light to moderate flights. Wednesday and Thursday nights see the southerly flow return, with moderate to heavy flights aloft in these favorable conditions. Note that some of these flights will interact with precipitation associated with an approaching low pressure center. Birders should watch for concentrations of migrants, particularly on Friday, in places where birds and precipitation interact.

Double-crested Cormorant. Patrick J. Blake/Macaulay Library. eBird S35205086.

Species on the Move

Beginning Arrivals What is this?

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Cinnamon Teal * 2/19 4/5 4/18 5/4 5/16
American White Pelican *** 2/21 3/31 4/13 After Jun 30 -
Horned Grebe ** 2/23 4/1 4/16 5/5 5/17
American Coot *** 2/25 4/2 4/18 5/7 5/22
Wood Duck *** 2/27 3/26 5/7 5/25 6/5
Wilson's Snipe ** 2/27 3/31 4/15 After Jun 30 -
Great Blue Heron *** 2/28 3/26 4/24 5/19 After Jun 30
Greater Yellowlegs *** 3/5 3/25 4/15 5/4 5/18
Baird's Sandpiper *** 3/10 3/26 4/22 5/18 6/4
Field Sparrow *** 3/10 4/2 4/26 5/9 5/17
Blue-winged Teal ****! 3/11 3/29 4/21 5/12 After Jun 30
Common Loon ** 3/13 3/24 4/9 5/9 After Jun 30
Turkey Vulture ****! 3/14 3/27 4/17 5/23 After Jun 30
Brown-headed Cowbird ****! 3/16 4/15 5/15 5/23 After Jun 30
Double-crested Cormorant ****! 3/17 3/29 4/14 5/1 After Jun 30
Purple Martin *** 3/19 4/7 5/9 After Jun 30 -
Tree Swallow *** 3/20 4/5 5/5 After Jun 30 -
Ruby-crowned Kinglet *** 3/21 4/1 4/25 5/17 5/27
Vesper Sparrow *** 3/21 4/2 4/19 5/6 After Jun 30
Pied-billed Grebe *** 3/22 4/3 4/17 5/3 5/16
Eastern Towhee ** 3/22 4/28 5/9 5/23 5/31
Great Egret *** 3/23 4/6 4/25 5/8 After Jun 30
Say's Phoebe * 3/25 4/12 6/11 After Jun 30 -
Eared Grebe *** 3/26 4/13 4/28 5/11 After Jun 30
Sharp-shinned Hawk * 3/26 4/1 4/8 4/26 5/10
Hermit Thrush ** 3/26 4/7 4/21 5/9 5/21
Bonaparte's Gull *** 3/27 4/5 4/18 5/3 5/14
Savannah Sparrow *** 3/27 4/11 4/25 5/12 After Jun 30

Peaking Arrivals

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Gadwall *** 2/18 2/28 3/26 After Jun 30 -
American Wigeon *** 2/16 3/1 3/24 4/20 After Jun 30
Lesser Scaup *** 2/18 3/2 3/31 4/20 After Jun 30
Bufflehead *** 2/20 3/3 3/21 4/13 5/10
Green-winged Teal *** 2/18 3/6 3/29 4/21 5/12
Red-breasted Merganser * 2/22 3/6 3/21 4/11 4/27
Killdeer ****! 2/20 3/6 4/1 5/1 After Jun 30
American Pipit * 2/21 3/6 4/19 5/7 5/19
Fox Sparrow * 3/1 3/9 3/23 4/15 4/29
Ruddy Duck *** 2/26 3/14 4/8 After Jun 30 -
Song Sparrow *** 3/1 3/16 4/1 4/15 4/25
Common Grackle *** 3/2 3/16 5/24 6/10 6/24
Northern Shoveler *** 2/25 3/19 4/13 5/7 After Jun 30
Common Loon * 3/13 3/24 4/9 5/9 After Jun 30
Greater Yellowlegs *** 3/5 3/25 4/15 5/4 5/18
Wood Duck ** 2/27 3/26 5/7 5/25 6/5
Great Blue Heron *** 2/28 3/26 4/24 5/19 After Jun 30
Baird's Sandpiper *** 3/10 3/26 4/22 5/18 6/4
Turkey Vulture ****! 3/14 3/27 4/17 5/23 After Jun 30

Beginning Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Brown Creeper * - - Before Feb 1 4/18 5/11
Dark-eyed Junco *** - 2/2 2/10 4/10 4/24
Common Merganser *** 2/18 2/25 3/6 3/21 4/6
Lapland Longspur * 2/24 2/27 3/6 3/20 3/31
Ross's Goose *** 2/16 2/24 3/7 3/20 3/29
Northern Shrike * 2/21 2/26 3/7 3/23 4/11
American Tree Sparrow *** 2/21 2/27 3/7 3/24 4/11
Greater White-fronted Goose *** 2/17 2/24 3/8 3/20 3/30
Rough-legged Hawk *** 2/21 2/27 3/8 3/22 4/5
Snow Goose *** 2/17 2/25 3/9 3/22 4/2
American Woodcock * 2/16 2/25 3/10 3/23 4/3
Northern Pintail ** 2/15 2/24 3/11 After Jun 30 -
Redhead *** 2/15 2/26 3/13 3/27 After Jun 30
Northern Harrier *** 2/20 2/27 3/13 4/22 After Jun 30
Golden-crowned Kinglet * 2/23 2/28 3/13 4/15 4/25
Ring-necked Duck *** 2/15 2/27 3/15 4/6 5/10
Sandhill Crane *** 2/20 3/3 3/18 4/3 4/17
Bufflehead *** 2/20 3/3 3/21 4/13 5/10
Red-breasted Merganser * 2/22 3/6 3/21 4/11 4/27
Fox Sparrow ** 3/1 3/9 3/23 4/15 4/29
American Wigeon *** 2/16 3/1 3/24 4/20 After Jun 30
Gadwall *** 2/18 2/28 3/26 After Jun 30 -

Ending Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Hooded Merganser *** 2/20 2/25 3/5 3/17 4/27
Rusty Blackbird * 2/17 2/23 3/3 3/17 4/21
Cackling Goose *** 2/19 2/25 3/5 3/19 3/31
Common Goldeneye *** 2/19 2/25 3/5 3/19 3/31
Bald Eagle *** 2/19 2/24 3/5 3/19 3/30
Greater White-fronted Goose *** 2/17 2/24 3/8 3/20 3/30
Ross's Goose *** 2/16 2/24 3/7 3/20 3/29
Lapland Longspur ** 2/24 2/27 3/6 3/20 3/31
Common Merganser *** 2/18 2/25 3/6 3/21 4/6
Snow Goose *** 2/17 2/25 3/9 3/22 4/2
Rough-legged Hawk *** 2/21 2/27 3/8 3/22 4/5
American Woodcock ** 2/16 2/25 3/10 3/23 4/3
Northern Shrike * 2/21 2/26 3/7 3/23 4/11
American Tree Sparrow *** 2/21 2/27 3/7 3/24 4/11
Redhead ** 2/15 2/26 3/13 3/27 After Jun 30

West

Widespread light to moderate flights will come to the region for the first half of the weekend. Some of these flights may be more intense, particularly in the southern and eastern Rockies as southerly winds facilitate an exodus of winter and an arrival of early spring migrants. Movements become more local by Sunday night, but return to greater extents by Monday to Wednesday as favorable migration conditions continue to build in many areas. Scattered precipitation will become more widely spread through the region, localizing flights significantly by Wednesday and Thursday. Most movements late in the work week will be confined to the intermountain west, from Arizona north into the Great Basin and northern Rockies.

Orange-crowned Warbler. Patricia Clark/Macaulay Library. eBird S35138570.

Species on the Move

Beginning Arrivals What is this?

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
American White Pelican * 2/19 4/4 5/9 5/25 6/3
White-throated Swift * 2/20 4/3 6/3 After Jun 30 -
Brant * 2/21 4/11 4/20 5/6 5/17
Violet-green Swallow *** 2/21 4/27 6/22 After Jun 30 -
Brewer's Blackbird ** 2/24 4/12 6/3 After Jun 30 -
Cassin's Kingbird * 2/28 4/13 5/6 5/24 6/5
Hooded Oriole *** 3/9 3/22 4/23 5/25 6/8
Scott's Oriole * 3/10 3/24 4/28 6/2 6/13
Pacific-slope Flycatcher *** 3/14 4/18 6/3 After Jun 30 -
Orange-crowned Warbler *** 3/15 4/8 4/28 5/16 After Jun 30
Black-chinned Hummingbird *** 3/15 4/2 5/16 6/1 6/11
Western Kingbird *** 3/17 4/29 5/17 6/1 6/12
Cliff Swallow *** 3/19 4/26 After Jun 30 - -
Blue-gray Gnatcatcher * 3/21 4/26 5/11 5/26 6/8
White-crowned Sparrow *** 3/21 3/30 4/9 4/30 5/23
Yellow-headed Blackbird *** 3/21 4/7 5/11 5/30 After Jun 30
Common Grackle *** 3/21 4/1 5/16 5/30 6/10
Osprey *** 3/22 4/2 4/21 5/3 5/20
Swainson's Hawk *** 3/22 4/4 4/29 5/26 6/8
Common Yellowthroat *** 3/22 4/6 5/19 6/3 6/14
American Avocet ** 3/23 4/8 4/26 5/16 6/7
White-throated Sparrow * 3/25 3/30 4/4 4/30 5/19
Franklin's Gull ** 3/25 4/5 4/21 5/3 6/11
Black-necked Stilt ** 3/26 4/8 4/26 5/16 6/4
Greater Yellowlegs *** 3/26 4/4 4/15 5/2 5/13
Bullock's Oriole *** 3/26 5/4 5/19 5/31 6/12
Blue-winged Teal ** 3/27 4/11 5/4 5/24 After Jun 30

Peaking Arrivals

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Tree Swallow *** 2/14 2/26 5/12 5/29 6/11
Yellow-rumped Warbler * 2/21 2/26 4/17 5/17 5/29
Cinnamon Teal ** 2/17 2/27 4/20 5/14 6/15
Northern Shoveler * 2/21 2/27 4/9 4/28 6/2
Northern Rough-winged Swallow *** 2/14 2/27 5/8 5/23 6/4
Gadwall * 2/21 2/28 4/14 5/22 After Jun 30
Mountain Bluebird * 2/20 3/3 4/2 4/16 4/24
Cooper's Hawk * 2/20 3/7 3/29 5/9 5/28
Broad-billed Hummingbird * 3/3 3/13 3/29 6/6 6/14
Lucy's Warbler ** 3/7 3/16 4/2 6/5 6/14
Rufous Hummingbird ** 3/2 3/18 4/12 5/11 5/26
Bell's Vireo * 3/7 3/18 4/26 6/3 6/12
Hooded Oriole ** 3/9 3/22 4/23 5/25 6/8
Scott's Oriole * 3/10 3/24 4/28 6/2 6/13

Beginning Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Sharp-shinned Hawk * - - Before Feb 1 5/5 5/18
Rough-legged Hawk * - - Before Feb 1 3/29 4/26
Varied Thrush * - 2/2 2/18 4/5 4/25
Dark-eyed Junco *** - 2/2 2/21 4/8 4/24
Canvasback * 2/25 2/27 3/3 4/18 5/1
Northern Pintail ** 2/20 2/25 3/4 3/20 5/2
Barrow's Goldeneye * 2/26 2/28 3/4 4/14 4/26
Hooded Merganser * 2/22 2/26 3/4 3/20 4/30
Common Goldeneye *** 2/21 2/26 3/5 4/15 4/28
Tundra Swan * 2/20 2/26 3/6 3/25 4/9
Ruddy Duck ** 2/22 2/26 3/6 5/21 6/3
Ring-billed Gull *** 2/19 2/25 3/6 3/20 4/1
Greater Scaup * 2/25 3/1 3/7 5/5 5/23
Bufflehead *** 2/21 2/26 3/7 4/29 5/18
Pied-billed Grebe ** 2/22 2/27 3/7 4/21 5/31
Eurasian Wigeon * 2/24 3/1 3/8 3/27 4/27
Horned Grebe * 2/25 3/1 3/8 5/1 5/15
American Coot ** 2/21 2/27 3/8 4/27 6/5
Ruby-crowned Kinglet *** 2/23 3/1 3/10 4/22 5/18
American Wigeon *** 2/20 2/27 3/11 4/20 5/16
Green-winged Teal ** 2/20 2/27 3/11 4/30 5/16
Ring-necked Duck ** 2/21 2/27 3/11 4/26 5/16
Surf Scoter * 2/25 3/2 3/11 5/6 5/22
Black Turnstone * 2/26 3/3 3/11 5/2 5/12
Lesser Scaup ** 2/20 2/27 3/12 4/25 5/22

Ending Departures

Species Noticeability Migrants Begin Arriving Rapid Migrant Influx Peak Rapid Migrant Departure Last Migrants Depart
Snow Goose * - - Before Feb 1 2/3 5/1
Mew Gull * - - Before Feb 1 2/3 3/28
Herring Gull ** - - Before Feb 1 2/3 3/26
Merlin * - - Before Feb 1 2/3 5/5
Bald Eagle ** - - Before Feb 1 3/18 4/4
Cackling Goose * 2/22 2/26 3/5 3/19 5/13
Common Merganser ** 2/21 2/26 3/6 3/19 5/5
Glaucous-winged Gull * 2/24 2/26 3/2 3/19 5/2
Northern Pintail ** 2/20 2/25 3/4 3/20 5/2
Hooded Merganser ** 2/22 2/26 3/4 3/20 4/30
Ring-billed Gull *** 2/19 2/25 3/6 3/20 4/1
Tundra Swan ** 2/20 2/26 3/6 3/25 4/9
Eurasian Wigeon * 2/24 3/1 3/8 3/27 4/27

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Farnsworth and Van Doren

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