Eastern Phoebe. Dave Kerr/Macaulay Library. 11 March 2016. eBird S28096826, ML 25574371
Continental Summary
Conditions in the West were more unfavorable than favorable this week, with only light movements early in the weekend and late in the work week, while localized light to moderate movements in the Great Plains and Texas and parts of the southeast were there highlights of migration in the East.
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A quiet weekend of cool conditions kept most birds on the ground. The first signs of movement occurred Sunday night, with light migration in the central Mississippi River and Ohio River valleys. The Ohio River valley, northern and central Appalachians, and mid Atlantic saw continued, scattered flights of this intensity for much of the remainder of the work week. However, the week ended with a strong frontal passage with extensive and intense rain, leaving only localized light flights to the south and east of the frontal boundary.
Top Movers
Increasing
Species
Increase from Last Week
% of Checklists Reporting
Killdeer
140%
22.8
Eastern Phoebe
533%
5.1
Tree Swallow
343%
4.6
Common Grackle
79%
32.7
American Robin
59%
52.2
Wood Duck
101%
11.6
Song Sparrow
63%
38
Sandhill Crane
139%
6.8
Red-winged Blackbird
54%
49.1
Eastern Meadowlark
108%
4.2
Northern Shoveler
78%
8.3
Brown-headed Cowbird
70%
7.7
Green-winged Teal
67%
8.1
American Woodcock
95%
4.2
Eastern Bluebird
43%
16.4
Blue-winged Teal
413%
0.9
Field Sparrow
87%
2.4
Pine Warbler
101%
1.7
Ring-necked Duck
38%
12.9
Northern Flicker
31%
10.3
Fox Sparrow
49%
4.1
Wilson's Snipe
104%
1.1
Mallard
28%
43
Pied-billed Grebe
54%
3.6
Rusty Blackbird
65%
2.7
Decreasing
Species
Decrease from Last Week
% of Checklists Reporting
Harlequin Duck
-54%
0.2
Purple Finch
-38%
1.9
Common Eider
-36%
0.8
Snowy Owl
-59%
0.1
Lesser Black-backed Gull
-32%
0.5
Common Murre
-75%
0.1
Surf Scoter
-26%
1.2
Pine Siskin
-21%
4.3
White-winged Crossbill
-61%
0
Razorbill
-35%
0.3
White-crowned Sparrow
-30%
1
Black Scoter
-26%
0.9
Common Loon
-20%
2.4
Iceland Gull
-37%
0.4
Bonaparte's Gull
-20%
0.7
White-winged Scoter
-22%
1.3
Northern Harrier
-11%
3.3
Chuck-will’s-widow. Jim and Melba Funk/Macaulay Library. 12 February 2016. eBird S27693549, ML 24661591
Gulf Coast and Southeast
Scattered light to moderate flights kicked off the period in Texas, followed by more widespread light flights from Texas to the southern Appalachians and then Florida and the southeastern US. By Tuesday night strong storms moved through the region and across the Mississippi River valley, stopping movements in these areas. Light movements continued ahead of this system, from Tuesday night through the remainder of the period, in the southern Appalachians and coastal Plain from the Carolinas through the Florida Keys.
Top Movers
Increasing
Species
Increase from Last Week
% of Checklists Reporting
Swallow-tailed Kite
103%
3.5
Northern Rough-winged Swallow
92%
2.5
Barn Swallow
68%
2.7
Pectoral Sandpiper
145%
0.7
Northern Parula
31%
8.8
American Golden-Plover
127%
0.7
Chuck-will's-widow
252%
0.4
Cattle Egret
27%
6.9
Tree Swallow
28%
13
Eastern Towhee
14%
16.4
Glossy Ibis
22%
6.4
Eastern Whip-poor-will
180%
0.2
Peregrine Falcon
64%
1.3
Black-chinned Hummingbird
57%
0.8
Couch's Kingbird
38%
1.3
Swainson's Hawk
194%
0.1
Brown-headed Cowbird
12%
8.6
Cliff Swallow
67%
0.3
Black-and-white Warbler
21%
5.2
Black-necked Stilt
40%
2.7
Decreasing
Species
Decrease from Last Week
% of Checklists Reporting
Red-tailed Hawk
-26%
8.5
Lincoln's Sparrow
-30%
2.8
Ring-necked Duck
-27%
4.9
Long-billed Curlew
-41%
0.7
Orange-crowned Warbler
-20%
6.1
Burrowing Owl
-59%
0.2
White-crowned Sparrow
-27%
2.6
American Bittern
-40%
0.9
Hermit Thrush
-25%
3.7
Fox Sparrow
-34%
0.9
Vesper Sparrow
-30%
1.5
Red-headed Woodpecker
-29%
2.4
Great Cormorant
-79%
0.1
Harris's Sparrow
-32%
0.8
Northern Pintail
-30%
1.1
Ruddy Duck
-20%
3.3
Tree Swallow. Dennis Cheeseman. 9 March 2016. eBird S28064075, ML 25504821.
Great Plains
Localized light to moderate flights highlighted the beginning of the weekend in the southern Plains, with some continuation of this flight through the weekend in the central Plains. These movements represented the most of the movement occurring in the region for the period. The days that followed these flights saw a frontal boundary shut down flights, with precipitation, cooler temperatures, and unfavorable winds. Highly localized light migration was scattered across the region to end the period, as ameliorating temperatures allowed some birds to take flight.
Top Movers
Increasing
Species
Increase from Last Week
% of Checklists Reporting
Blue-winged Teal
153%
5.2
Western Meadowlark
85%
12.8
Brown-headed Cowbird
93%
7.5
Eastern Meadowlark
68%
14.7
Killdeer
42%
32.6
Red-winged Blackbird
39%
42.1
Common Grackle
50%
16.2
Tree Swallow
396%
1.2
Eastern Phoebe
42%
11.5
Great Egret
365%
1.2
American White Pelican
127%
4.1
Northern Shoveler
27%
10.5
Hermit Thrush
191%
1.5
Great Blue Heron
33%
12.5
Baird's Sandpiper
105%
1.3
Wood Duck
23%
5.3
American Woodcock
104%
2
Long-billed Dowitcher
110%
0.8
Sandhill Crane
35%
4.2
Green-winged Teal
22%
11.1
Belted Kingfisher
40%
4.8
Mallard
16%
34.2
Decreasing
Species
Decrease from Last Week
% of Checklists Reporting
Northern Saw-whet Owl
-85%
0.2
Smith's Longspur
-80%
0.1
American Goldfinch
-29%
13.5
Pine Siskin
-36%
2.9
Northern Harrier
-27%
6.5
Prairie Falcon
-75%
0.2
Common Merganser
-24%
3.9
White-crowned Sparrow
-25%
3.9
Common Raven
-57%
0.4
Chipping Sparrow
-50%
0.6
Red-tailed Hawk
-13%
22.2
Ross's Goose
-25%
2.1
Bald Eagle
-14%
10.5
Snow Goose
-14%
8.1
Eastern Towhee
-81%
0.1
Northern Shrike
-26%
1.1
Herring Gull
-18%
2.5
Field Sparrow
-37%
1.8
Long-tailed Duck
-62%
0.1
Ferruginous Hawk
-71%
0.1
Lucy’s Warbler. Barry McKee/Macaulay Library. 8 March 2016. eBird S28057349, ML 25487771
West
Precipitation, particularly along the coast and in the mountains, and unfavorable conditions kept most migration very light at best for the first half of the period. By mid week, particularly Wednesday night, movements were more apparent, with light flights in the Central Valley and in some portions of the Desert Southwest. Flights in these areas continued through the end of the period, with some expansion to the north along the eastern front of the Rockies.