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24 April-1 May 2015 Forecast: and that’s a cold shot, baby

Blackburnian Warbler © Luke Seitz

Blackburnian Warbler © Luke Seitz

Continental Summary

An odd week in the East will feature good conditions for trans-Gulf flights (and fallouts), some early period moderate to locally heavy flights in the Plains, and a more quiet than usual Northeast with numerous species on the move including Green Heron, Black-bellied Plover, Lesser Yellowlegs, Caspian Tern, Blue-headed Vireo, Prairie Warbler, Yellow-throated Warbler, Worm-eating Warbler, Savannah Sparrow, and Summer Tanager, while the West sees a quiet heart of the period bookended by light to moderate flights that will included Lesser Yellowlegs, Long-billed and Short-billed Dowitchers, Black Tern, Plumbeous Vireo, Wilson’s Warbler, Hermit Warbler, and Lark Bunting.

Wondering what’s on the move now? Check out our analysis from the past week.

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!

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

A strangely cold beginning to the period, featuring unfavorable westerly and northwesterly flow coupled with cool temperatures, will make the scattered light movements of the weekend seem exciting by the middle of the work week. Given the date, some movements may reach moderate levels if winds are weaker than anticipated, as birds will be on the move to some extent almost every night that rain and strong winds are not present. Some isolated pockets of locally more favorable in the Great Lakes and mid Atlantic states may see even heavier movements. Not until Wednesday or Thursday, and then primarily to north and east of the Appalachians, will conditions improve sufficiently for moderate to locally heavy flights to become slightly more widespread.

Canadian Maritimes Sidebar – a dip into the negative for the North Atlantic Oscillation, signifying a pattern of easterly flow over the North Atlantic, will be of great interest to birders in Newfoundland and other areas of northeastern Canada. Such a pattern characterizes the arrival of European vagrants including European Golden-Plover and other goodies. Birders should keep a watchful eye in these areas, as should birders in New England.

Blue-headed Vireo © Ian Davies

Blue-headed Vireo © Ian Davies

Species on the Move

Beginning to Arrive What is this?

Species Begin Arrival Rapid Influx Peak Rapid Depart
Lincoln's Sparrow 4/24 5/1 5/11 5/22
Baltimore Oriole 4/24 5/2 5/15 5/24
Common Yellowthroat 4/24 5/3 5/18 -
Black-throated Blue Warbler 4/25 5/1 5/11 5/21
Golden-winged Warbler 4/25 5/2 5/12 5/22
Scarlet Tanager 4/25 5/3 5/16 -
Indigo Bunting 4/25 5/5 6/20 -
Cape May Warbler 4/26 5/2 5/12 5/22
Blackburnian Warbler 4/26 5/4 5/15 5/25
Least Flycatcher 4/26 5/4 5/16 5/26
Least Sandpiper 4/26 5/4 5/15 5/27
Veery 4/26 5/5 5/18 -
Ruby-throated Hummingbird 4/26 5/7 5/21 -
Acadian Flycatcher 4/26 5/6 6/3 -
Bobolink 4/26 5/5 6/9 -
Tennessee Warbler 4/27 5/5 5/15 5/26
Swainson's Thrush 4/27 5/5 5/15 5/26
Chestnut-sided Warbler 4/27 5/5 5/16 5/27
American Redstart 4/27 5/6 5/18 5/28
Red-eyed Vireo 4/27 5/9 5/26 -
Yellow-billed Cuckoo 4/27 5/10 5/31 -
Gray-cheeked Thrush 4/28 5/5 5/15 5/26
Bay-breasted Warbler 4/28 5/6 5/15 5/26
Magnolia Warbler 4/28 5/5 5/16 5/27
Common Tern 4/28 5/8 - -
Short-billed Dowitcher 4/30 5/8 5/18 5/29
Black Tern 4/30 5/9 5/22 -
Philadelphia Vireo 5/1 5/8 5/18 5/28
Wilson's Warbler 5/1 5/8 5/18 5/28
Blackpoll Warbler 5/1 5/9 5/18 5/29
Black-billed Cuckoo 5/1 5/11 5/25 6/4

Arriving

Species Begin Arrival Rapid Influx Peak Rapid Depart
Palm Warbler 4/2 4/24 5/4 5/16
Sora 4/12 4/24 5/7 5/20
Worm-eating Warbler 4/16 4/24 5/6 -
Prairie Warbler 4/14 4/24 5/7 -
Blue-headed Vireo 4/16 4/25 5/5 5/16
Green Heron 4/14 4/25 5/11 -
Summer Tanager 4/19 4/27 5/9 5/17
Solitary Sandpiper 4/20 4/27 5/7 5/18
Kentucky Warbler 4/18 4/27 5/10 -
Hooded Warbler 4/18 4/27 5/10 -
House Wren 4/18 4/27 5/12 -
Blue-winged Warbler 4/20 4/28 5/10 5/18
Red-headed Woodpecker 4/19 4/28 5/9 -
Cerulean Warbler 4/19 4/28 5/12 -
Chimney Swift 4/17 4/28 5/17 -
Cliff Swallow 4/12 4/28 5/18 -
Grasshopper Sparrow 4/19 4/28 6/10 -
Blue Grosbeak 4/19 4/28 - -
Orange-crowned Warbler 4/21 4/29 5/8 5/19
White-crowned Sparrow 4/23 4/29 5/8 5/19
Black-and-white Warbler 4/21 4/29 5/9 5/19
Forster's Tern 3/28 4/29 5/10 5/24
Yellow-breasted Chat 4/21 4/29 6/11 -
Nashville Warbler 4/23 4/30 5/9 5/19
Black-throated Green Warbler 4/22 4/30 5/10 5/20
Northern Waterthrush 4/22 4/30 5/10 5/21
Northern Parula 4/22 4/30 5/10 5/21
Spotted Sandpiper 4/17 4/30 5/14 5/27
Yellow-throated Vireo 4/21 4/30 5/13 -
Orchard Oriole 4/21 4/30 5/13 -
Black-throated Blue Warbler 4/25 5/1 5/11 5/21
Rose-breasted Grosbeak 4/23 5/1 5/12 5/21
Lincoln's Sparrow 4/24 5/1 5/11 5/22
Bank Swallow 4/16 5/1 5/17 5/29
Wood Thrush 4/22 5/1 5/13 -
Ovenbird 4/23 5/1 5/13 -
Yellow Warbler 4/22 5/1 5/14 -
Warbling Vireo 4/22 5/1 5/15 -

Peaking

Species Begin Arrival Rapid Influx Peak Rapid Depart
Purple Finch 4/5 4/14 4/24 5/4
Yellow-throated Warbler 3/29 4/9 4/24 5/7
Cooper's Hawk 3/16 4/9 4/24 5/13
Merlin 3/29 4/9 4/24 5/25
Caspian Tern 3/30 4/9 4/24 -
Ruby-crowned Kinglet 4/2 4/12 4/25 5/8
Broad-winged Hawk 4/7 4/15 4/26 5/5
Greater Yellowlegs 3/23 4/9 4/27 5/16
Field Sparrow 3/28 4/9 4/27 -
White-throated Sparrow 4/9 4/18 4/28 5/11
Swamp Sparrow 3/31 4/13 4/29 5/14
Louisiana Waterthrush 3/26 4/5 4/30 5/14
Brown Thrasher 4/1 4/14 4/30 -
Eastern Towhee 4/4 4/16 5/1 -

Departing

Species Begin Arrival Rapid Influx Peak Rapid Depart
Green-winged Teal - - 3/31 4/24
Northern Harrier - - 4/6 4/24
Bonaparte's Gull 3/18 3/30 4/11 4/24
Common Loon 3/17 3/26 4/11 4/26
Winter Wren 3/23 4/1 4/14 4/26
Ruddy Duck - - 3/28 4/27
Northern Shoveler - - 4/3 4/27
Pied-billed Grebe 3/2 3/24 4/10 4/27
American Kestrel 3/15 3/28 4/11 4/29
Rusty Blackbird - 3/2 4/11 4/30
Wilson's Snipe 3/8 3/25 4/15 4/30
American Coot - - 4/5 5/1

Gulf Coast and Southeast

Moderate to heavy flights, including some nice inputs of trans-Gulf migrants, are on tap for the weekend. Some of these flights may encounter precipitation, continuing potential for fallouts similar to those that the region has experienced in previous weeks. This potential looks especially good on Saturday, Monday, Tuesday, and Wednesday, from western Gulf areas through peninsular Florida, as a stronger and more organized disturbance passes through the region. However, with the passage of this system, migration is scarce to end the period, with generally unfavorable conditions for flights across the region and far south into the Gulf of Mexico.

Chestnut-sided Warbler © Ian Davies

Chestnut-sided Warbler © Ian Davies

Beginning to Arrive What is this?

Species Begin Arrival Rapid Influx Peak Rapid Depart
Mourning Warbler 4/24 5/1 5/12 5/23
Willow Flycatcher 4/26 5/4 5/15 5/26
Yellow-bellied Flycatcher 4/27 5/5 5/15 5/26

Arriving

Species Begin Arrival Rapid Influx Peak Rapid Depart
Blackburnian Warbler 4/12 4/24 5/5 5/18
Bay-breasted Warbler 4/17 4/25 5/5 5/15
Philadelphia Vireo 4/16 4/25 5/5 5/17
Chestnut-sided Warbler 4/16 4/25 5/6 5/17
Acadian Flycatcher 4/11 4/25 5/30 -
Eastern Wood-Pewee 4/13 4/26 5/10 5/22
Magnolia Warbler 4/19 4/27 5/6 5/17
American Redstart 4/18 4/27 5/6 5/18
Yellow-billed Cuckoo 4/10 4/28 5/30 -
Least Flycatcher 4/21 4/29 5/9 5/20
Wilson's Warbler 4/22 4/30 5/9 5/20
Canada Warbler 4/23 5/1 5/11 5/22
Mourning Warbler 4/24 5/1 5/12 5/23
Olive-sided Flycatcher 4/22 5/1 5/12 5/24
White-rumped Sandpiper 4/22 5/1 5/14 5/27

Peaking

Species Begin Arrival Rapid Influx Peak Rapid Depart
Black-bellied Plover 4/6 4/14 4/24 5/7
Lesser Yellowlegs 3/11 4/15 4/24 5/10
Black-bellied Whistling-Duck 3/2 3/18 4/24 -
Brown-crested Flycatcher 4/3 4/12 4/24 -
Least Bittern 3/20 4/14 4/24 -
Chuck-will's-widow 3/19 4/10 4/25 -
Kentucky Warbler 3/31 4/10 4/25 -
Magnificent Frigatebird 3/31 4/12 4/25 -
Scarlet Tanager 4/6 4/15 4/26 5/6
Nashville Warbler 4/4 4/15 4/26 5/9
Black-and-white Warbler 3/10 4/17 4/26 5/9
Semipalmated Plover 4/6 4/15 4/26 5/29
Summer Tanager 4/2 4/12 4/26 -
Bronzed Cowbird 3/20 4/14 4/26 -
Gray Kingbird 4/6 4/15 4/27 5/7
Rose-breasted Grosbeak 4/10 4/17 4/27 5/8
Yellow-headed Blackbird 4/7 4/15 4/27 5/9
Gray Catbird 4/9 4/17 4/27 5/10
Solitary Sandpiper 4/1 4/15 4/27 5/11
Wood Thrush 4/6 4/15 4/27 -
Baltimore Oriole 4/9 4/17 4/28 5/9
Cape May Warbler 4/10 4/17 4/28 5/9
Orchard Oriole 3/30 4/10 4/28 5/11
Tennessee Warbler 4/5 4/15 4/28 5/11
Northern Waterthrush 4/9 4/17 4/28 5/11
Ruby-throated Hummingbird 3/16 4/4 4/28 5/14
Blue Grosbeak 4/6 4/15 4/28 -
Ovenbird 4/8 4/17 4/29 5/10
Golden-winged Warbler 4/11 4/18 4/29 5/10
Black-throated Green Warbler 4/7 4/17 4/29 5/12
Clay-colored Sparrow 3/25 4/19 4/29 5/12
Pectoral Sandpiper 3/9 3/19 4/29 5/16
Brown-headed Cowbird 3/2 3/19 4/29 -
Northern Rough-winged Swallow 3/2 3/21 4/29 -
Purple Martin 3/4 3/21 4/29 -
Indigo Bunting 4/3 4/14 4/29 -
Black-throated Blue Warbler 4/11 4/19 4/30 5/11
Gray-cheeked Thrush 4/11 4/19 4/30 5/12
Barn Swallow 3/5 3/21 4/30 -
Bell's Vireo 4/4 4/15 4/30 -
Veery 4/12 4/19 5/1 5/12
Least Sandpiper - 4/23 5/1 5/16

Departing

Species Begin Arrival Rapid Influx Peak Rapid Depart
Northern Harrier - - 3/1 4/24
American Coot - - 3/1 4/25
Osprey - - 3/16 4/25
Swamp Sparrow - - 3/19 4/26
Sharp-shinned Hawk - - - 4/27
Northern Shoveler - - - 4/27
Upland Sandpiper 3/19 3/30 4/13 4/28
Prairie Warbler 3/22 4/3 4/16 4/28
Long-billed Curlew - - 3/16 4/29
Spotted Towhee - - 3/21 4/29
White-throated Sparrow - - 4/10 4/29
Marbled Godwit - 4/6 4/14 4/29
Brown Pelican - - 4/16 4/29
Herring Gull - - - 4/29
Merlin - 4/7 4/17 4/30
Royal Tern - 4/9 4/18 4/30
Worm-eating Warbler 3/27 4/8 4/19 4/30
Orange-crowned Warbler - - 3/1 5/1
House Wren 3/16 3/30 4/12 5/1
Piping Plover - 4/1 4/17 5/1
Sedge Wren 4/3 4/10 4/18 5/1
Blue-winged Warbler 3/30 4/8 4/19 5/1
Willet 3/9 4/11 4/19 5/1
Gull-billed Tern 3/14 4/7 4/20 5/1
Cerulean Warbler 4/2 4/10 4/21 5/1
American Bittern - - - 5/1

Great Plains

Unsettled conditions, including some potential for strong storms, will bring a mixed bag of movements to the region to kick off the weekend. Areas away from storms and rain will experience moderate to heavy flights on Friday night and into Saturday. But thereafter conditions become increasingly unfavorable for much of the week for the region, with cooler temperatures and northerly and westerly flow keeping most migrants on the ground. If winds are weaker than forecast, more substantial flights are likely, potentially reaching moderate and locally heavy amounts. By Wednesday night, and continuing through the end of the period, the next blast of southerly flow arrives in the northern and central Plains, and with it will come a blast of moderate and heavy flights.

Lincoln's Sparrow © Ian Davies

Lincoln’s Sparrow © Ian Davies

Species on the Move

Beginning to Arrive What is this?

Species Begin Arrival Rapid Influx Peak Rapid Depart
Northern Waterthrush 4/24 5/1 5/11 5/22
Wood Thrush 4/24 5/2 5/13 5/24
Swainson's Thrush 4/24 5/2 5/13 5/24
Sanderling 4/24 5/4 5/16 5/29
Common Yellowthroat 4/24 5/4 5/19 -
Bell's Vireo 4/24 5/6 6/4 -
Rose-breasted Grosbeak 4/25 5/2 5/13 5/24
Scarlet Tanager 4/25 5/7 5/21 6/4
Red-headed Woodpecker 4/25 5/4 5/17 -
Yellow-breasted Chat 4/25 5/10 6/3 -
Mountain Bluebird 4/25 5/17 - -
Blue Grosbeak 4/25 5/20 - -
Golden-winged Warbler 4/26 5/2 5/12 5/22
Gray-cheeked Thrush 4/26 5/3 5/13 5/24
Least Flycatcher 4/26 5/3 5/14 5/25
Gray Catbird 4/26 5/4 5/16 -
Yellow Warbler 4/26 5/4 5/16 -
Lazuli Bunting 4/26 5/5 5/18 -
Orchard Oriole 4/26 5/5 5/27 -
Black-headed Grosbeak 4/26 5/7 6/5 -
Wilson's Warbler 4/27 5/4 5/14 5/26
Tennessee Warbler 4/27 5/5 5/15 5/27
Lark Bunting 4/27 5/9 5/31 -
Blackpoll Warbler 4/28 5/5 5/15 5/26
Ovenbird 4/28 5/6 5/16 5/26
Black-bellied Plover 4/28 5/7 5/16 5/28
Eastern Wood-Pewee 4/28 5/7 5/20 -
Philadelphia Vireo 4/29 5/6 5/16 5/27
Stilt Sandpiper 4/29 5/7 5/17 5/28
Acadian Flycatcher 4/29 5/10 5/22 6/2
Chestnut-sided Warbler 4/30 5/8 5/17 5/28
White-rumped Sandpiper 4/30 5/8 5/19 5/30
Veery 4/30 5/8 5/18 -
Yellow-billed Cuckoo 4/30 5/14 6/5 -
Bobolink 4/30 5/8 6/16 -
American Redstart 5/1 5/8 5/18 5/28
Blackburnian Warbler 5/1 5/9 5/18 5/28
Magnolia Warbler 5/1 5/9 5/18 5/28
Common Nighthawk 5/1 5/15 6/2 -
Violet-green Swallow 5/1 5/22 6/13 -

Arriving

Species Begin Arrival Rapid Influx Peak Rapid Depart
Yellow-rumped Warbler 4/15 4/24 5/3 5/16
Chipping Sparrow 3/31 4/24 5/7 -
Chuck-will's-widow 4/15 4/24 6/1 -
White-crowned Sparrow 4/18 4/25 5/4 5/15
Lincoln's Sparrow 4/5 4/25 5/4 5/16
Brown Thrasher 4/5 4/25 5/7 -
Orange-crowned Warbler 4/18 4/26 5/6 5/17
House Wren 4/15 4/26 5/12 -
Chimney Swift 4/15 4/27 5/15 -
Palm Warbler 4/20 4/28 5/8 5/18
Least Sandpiper 4/17 4/28 5/9 5/23
Spotted Sandpiper 4/17 4/28 5/11 5/24
Eastern Towhee 3/22 4/28 5/9 -
Summer Tanager 4/19 4/28 5/11 -
Nashville Warbler 4/22 4/29 5/9 5/19
Clay-colored Sparrow 4/22 4/29 5/9 5/19
Western Kingbird 4/19 4/29 6/7 -
Blue-headed Vireo 4/23 4/30 5/9 5/19
Black-and-white Warbler 4/23 4/30 5/10 5/20
Kentucky Warbler 4/20 4/30 5/13 -
Indigo Bunting 4/22 4/30 5/13 -
Warbling Vireo 4/20 4/30 5/14 -
Great Crested Flycatcher 4/20 4/30 5/15 -
Eastern Kingbird 4/17 4/30 5/28 -
Painted Bunting 4/22 4/30 6/8 -
Cassin's Sparrow 4/7 4/30 6/14 -
Northern Waterthrush 4/24 5/1 5/11 5/22
Black-throated Green Warbler 4/23 5/1 5/12 5/23
Baltimore Oriole 4/22 5/1 5/14 5/24
Ruby-throated Hummingbird 4/18 5/1 5/16 5/30
Yellow-throated Vireo 4/22 5/1 5/13 -
Bank Swallow 4/12 5/1 5/15 -
Mississippi Kite 4/23 5/1 5/17 -
Bullock's Oriole 4/23 5/1 6/3 -
Burrowing Owl 3/17 5/1 6/15 -
Marsh Wren 4/1 5/1 6/16 -

Peaking

Species Begin Arrival Rapid Influx Peak Rapid Depart
Great Blue Heron 3/2 3/24 4/24 -
Yellow-throated Warbler 3/18 4/1 4/24 -
Savannah Sparrow 3/18 4/15 4/25 5/8
Great Egret 3/23 4/6 4/25 -
Lesser Yellowlegs 4/2 4/14 4/26 5/10
Scissor-tailed Flycatcher 3/27 4/7 4/26 -
Cattle Egret 4/2 4/14 4/26 -
Black-necked Stilt 4/7 4/15 4/26 -
Eared Grebe 3/18 4/15 4/27 -
American Avocet 4/6 4/15 4/27 -
White-faced Ibis 4/8 4/15 4/27 -
Snowy Egret 4/1 4/12 4/28 -
Semipalmated Plover 4/9 4/17 4/29 5/28
Little Blue Heron 3/29 4/11 4/29 -
White-throated Sparrow 4/11 4/21 5/1 5/14
Harris's Sparrow - 4/23 5/1 5/14
Ruby-crowned Kinglet 3/23 3/31 5/1 5/15
Broad-winged Hawk 4/5 4/16 5/1 5/15
Long-billed Dowitcher 4/12 4/20 5/1 5/15
Willet 4/11 4/19 5/1 -

Departing

Species Begin Arrival Rapid Influx Peak Rapid Depart
Northern Harrier - - 3/18 4/25
Green-winged Teal - - 3/28 4/25
Lesser Scaup 3/2 3/16 3/29 4/27
American Kestrel - - 4/5 4/27
Sharp-shinned Hawk - - - 4/28
Common Loon 3/15 3/23 4/5 5/1

West

Scattered favorable conditions around the region bring moderate pulses of migrants to the Desert Southwest and light to moderate movements elsewhere in the region to start the period. But the days that follow, up to Tuesday, will be much more quiet, with only scattered light movements in the wake of passing low pressure. A new burst of light to moderate migrant activity returns to end the period, with Wednesday and Thursday nights bringing more widespread movements as favorable conditions return to more of the region.

Townsend's Warbler © Ryan Schain

Townsend’s Warbler © Ryan Schain

Species on the Move

Beginning to Arrive What is this?

Species Begin Arrival Rapid Influx Peak Rapid Depart
Lark Bunting 4/24 5/4 5/17 -
Black Tern 4/25 5/7 5/24 -
Clay-colored Sparrow 4/27 5/4 5/14 5/25
Swainson's Thrush 4/27 5/9 - -
Cedar Waxwing 5/1 5/15 6/1 -
Western Wood-Pewee 5/1 5/17 6/6 -

Arriving

Species Begin Arrival Rapid Influx Peak Rapid Depart
Long-billed Dowitcher 4/16 4/24 5/3 5/15
Wilson's Warbler 4/11 4/24 5/11 5/27
Hermit Warbler 4/13 4/24 5/7 -
Forster's Tern 4/12 4/24 5/9 -
Plumbeous Vireo 4/12 4/24 5/17 -
Lark Sparrow 4/12 4/25 5/12 -
Lesser Nighthawk 3/29 4/25 5/17 -
Virginia's Warbler 4/16 4/26 5/9 -
Brown-crested Flycatcher 4/15 4/26 5/16 -
Lazuli Bunting 4/12 4/26 5/17 -
Green-tailed Towhee 4/17 4/27 5/6 -
Western Kingbird 3/17 4/27 5/17 -
Bank Swallow 4/9 4/27 5/18 -
Brown-headed Cowbird 4/11 4/27 5/19 -
Townsend's Warbler 4/20 4/28 5/8 5/21
Wilson's Phalarope 4/18 4/28 5/11 5/22
Sora 4/18 4/28 5/10 5/23
Red-necked Phalarope 4/15 4/28 5/12 5/27
Broad-tailed Hummingbird 4/11 4/28 5/20 -
Chipping Sparrow 4/17 4/29 5/13 -
Purple Martin 4/1 4/29 - -
Spotted Sandpiper 4/21 4/30 5/14 5/26
House Wren 3/5 4/30 5/22 -
Yellow-breasted Chat 4/17 5/1 5/24 -
Warbling Vireo 4/18 5/1 6/2 -

Peaking

Species Begin Arrival Rapid Influx Peak Rapid Depart
Bonaparte's Gull 4/2 4/13 4/24 5/5
Marbled Godwit - 4/16 4/24 5/6
Savannah Sparrow 3/26 4/8 4/24 -
Short-billed Dowitcher 4/1 4/16 4/25 5/7
Lesser Yellowlegs 4/4 4/14 4/25 5/9
Swainson's Hawk 3/25 4/6 4/25 -
Dunlin 4/10 4/17 4/26 5/9
Black-necked Stilt 3/26 4/8 4/26 5/16
American Avocet 3/25 4/8 4/26 5/19
Nashville Warbler 4/2 4/13 4/27 5/9
Willet 4/10 4/17 4/27 5/9
Least Sandpiper 4/10 4/17 4/27 5/9
Black-throated Gray Warbler 3/27 4/12 4/27 -
Western Sandpiper 4/9 4/17 4/28 5/10
Whimbrel 3/18 4/19 4/28 5/10
Bell's Vireo 3/11 3/21 4/28 -
Scott's Oriole 3/14 3/22 4/28 -
Caspian Tern 4/1 4/14 4/28 -
Semipalmated Plover 4/11 4/19 4/29 5/11
White-faced Ibis 4/6 4/15 4/30 5/28
Hooded Oriole 3/13 3/23 4/30 -
Solitary Sandpiper 4/12 4/21 5/1 5/13
Orange-crowned Warbler 3/21 4/2 5/1 5/15
Dusky-capped Flycatcher 4/3 4/15 5/1 -

Departing

Species Begin Arrival Rapid Influx Peak Rapid Depart
Ruby-crowned Kinglet - - 3/3 4/28
Ring-necked Duck - - 3/9 4/28
Lesser Scaup - - 3/14 4/28
White-throated Sparrow - - - 4/30
Merlin - - - 4/30
Golden-crowned Sparrow - - 4/12 5/1
Greater Yellowlegs - 4/5 4/15 5/1
Green-winged Teal - - - 5/1
Bufflehead - - - 5/1

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