Forecast and Analysis

Regional Migration Analysis: 1-8 May 2015

Andrew Farnsworth The Cornell Lab May 08, 2015

Cape May Warbler © Ian Davies

Cape May Warbler © Ian Davies

Continental Summary

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

Top Movers

Increasing

Species Increase from Last Week % of Checklists Reporting
Baltimore Oriole 256% 40.5
Chestnut-sided Warbler 922% 12
Rose-breasted Grosbeak 213% 23
Magnolia Warbler 1467% 10.2
American Redstart 289% 16.5
Nashville Warbler 251% 14.9
Gray Catbird 166% 50.6
Black-throated Blue Warbler 298% 11.2
Least Flycatcher 597% 7.4
Cape May Warbler 950% 5.4
Veery 366% 8.1
Common Yellowthroat 168% 31.8
Indigo Bunting 233% 15.8
Swainson's Thrush 657% 7.1
White-crowned Sparrow 206% 14.5
Ovenbird 121% 21.8
Blackburnian Warbler 271% 6.1
Blackpoll Warbler 1070% 4.4
Wood Thrush 115% 21.7
Great Crested Flycatcher 139% 20.2
Eastern Wood-Pewee 430% 5.2
Black-throated Green Warbler 117% 18.6
Warbling Vireo 124% 20.4
Scarlet Tanager 206% 14.2
Tennessee Warbler 344% 6.3

Decreasing

Species Decrease from Last Week % of Checklists Reporting
Bufflehead -73% 1.3
Dark-eyed Junco -67% 2.7
Pied-billed Grebe -52% 2.1
Rusty Blackbird -62% 0.9
Horned Grebe -77% 0.4
Ring-necked Duck -75% 0.7
Northern Shoveler -50% 2
Green-winged Teal -59% 1.4
Blue-winged Teal -40% 4.4
Bonaparte's Gull -55% 1.1
Wilson's Snipe -52% 1.2
Lesser Scaup -57% 1
Ruby-crowned Kinglet -28% 14.9
Red-breasted Merganser -43% 2
Hermit Thrush -29% 6.3
American Coot -28% 4.2
Red-necked Grebe -76% 0.1
Purple Finch -29% 5.8
Ruddy Duck -42% 1.3

Wilson's Warbler © Ian Davies

Wilson’s Warbler © Ian Davies

Gulf Coast and Southeast

Top Movers

Increasing

Species Increase from Last Week % of Checklists Reporting
Wilson's Warbler 124% 2.6
Mourning Warbler 250% 0.7
Willow Flycatcher 134% 0.7
Olive-sided Flycatcher 203% 1.1
Mississippi Kite 24% 5.9
American Redstart 30% 15.5
Hepatic Tanager 87% 0.4
Magnificent Frigatebird 58% 2.6
Semipalmated Sandpiper 18% 4
Alder Flycatcher 210% 0.2
Canada Warbler 26% 2
Cordilleran Flycatcher 92% 0.2
Scott's Oriole 26% 1
Eastern Wood-Pewee 20% 10
Black-headed Grosbeak 35% 0.7
Western Wood-Pewee 41% 0.4

Decreasing

Species Decrease from Last Week % of Checklists Reporting
White-throated Sparrow -77% 2.4
Ruby-crowned Kinglet -73% 1.2
Yellow-rumped Warbler -57% 5.4
Blue-winged Warbler -83% 0.3
Rose-breasted Grosbeak -55% 6.5
Nashville Warbler -49% 2.1
Baltimore Oriole -40% 4.8
White-crowned Sparrow -52% 2.1
Scarlet Tanager -48% 6.1
Swamp Sparrow -73% 0.4
Veery -59% 1.8
Palm Warbler -37% 5
Sora -68% 0.5
Gray-cheeked Thrush -61% 1.7
Gray Catbird -32% 16
Hooded Warbler -37% 4.8
Blue-winged Teal -34% 5.9
Broad-winged Hawk -49% 1.8
Pine Siskin -41% 3.4
Worm-eating Warbler -50% 1.6
Swainson's Hawk -53% 1.1
Franklin's Gull -79% 0.2
Black-and-white Warbler -27% 11.5
Black-throated Green Warbler -27% 5.7

Ovenbird © Ian Davies

Ovenbird © Ian Davies

Great Plains

Top Movers

Increasing

Species Increase from Last Week % of Checklists Reporting
Rose-breasted Grosbeak 363% 13.6
Least Flycatcher 226% 17.9
Tennessee Warbler 264% 12.4
Gray Catbird 202% 16.7
Yellow Warbler 136% 27.6
Swainson's Thrush 141% 24.4
Orchard Oriole 165% 12.4
Baltimore Oriole 79% 32.7
Nashville Warbler 141% 14.1
Ovenbird 384% 4
Clay-colored Sparrow 76% 16.7
Indigo Bunting 97% 17.9
Wilson's Warbler 336% 3.9
Mississippi Kite 155% 6.1
Black-and-white Warbler 97% 10.6
Blue-headed Vireo 177% 4.6
Yellow-billed Cuckoo 252% 3.5
Eastern Wood-Pewee 130% 5.2
Red-eyed Vireo 67% 15.2
Northern Waterthrush 182% 4.5
Dickcissel 44% 10.6
Warbling Vireo 44% 18.3
Red-headed Woodpecker 53% 12.6
Bobolink 243% 2.3
Summer Tanager 53% 11.6

Decreasing

Species Decrease from Last Week % of Checklists Reporting
Horned Grebe -85% 0.3
Pied-billed Grebe -48% 5.6
Greater Yellowlegs -51% 3.7
Green-winged Teal -43% 4.6
Franklin's Gull -32% 6.1
Hermit Thrush -76% 0.3
Marbled Godwit -43% 2.6
Osprey -42% 2.1
Snow Goose -66% 0.6
Blue-winged Teal -15% 30.1
Ring-necked Duck -41% 2.1
American Wigeon -23% 6.4
Wilson's Snipe -40% 1.7

Bank Swallow © Ian Davies

Bank Swallow © Ian Davies

West

Top Movers

Increasing

Species Increase from Last Week % of Checklists Reporting
Western Wood-Pewee 93% 7
Swainson's Thrush 94% 3.5
Yellow Warbler 34% 18.2
Western Tanager 37% 12.9
Black-headed Grosbeak 30% 19.7
Bullock's Oriole 32% 13.3
Bank Swallow 132% 3.3
Evening Grosbeak 38% 5.2
Olive-sided Flycatcher 43% 3
Cliff Swallow 44% 16.6
Barn Swallow 32% 25.4
Spotted Sandpiper 29% 8.7
Northern Rough-winged Swallow 47% 14.5
MacGillivray's Warbler 37% 3.1
Vaux's Swift 126% 4.1
Yellow-breasted Chat 37% 4.5
Warbling Vireo 26% 11.3
Northern Waterthrush 184% 0.6
Violet-green Swallow 28% 18
Brown-headed Cowbird 20% 20.8
Forster's Tern 29% 4
Lazuli Bunting 24% 8
Wilson's Warbler 16% 19.2
Dusky Flycatcher 34% 1.9

Decreasing

Species Decrease from Last Week % of Checklists Reporting
Least Sandpiper -43% 3.4
Western Sandpiper -44% 2.3
Greater Yellowlegs -43% 2.3
Golden-crowned Sparrow -44% 2.7
Green-winged Teal -38% 4
Dunlin -45% 1.7
Semipalmated Plover -44% 1.7
Horned Grebe -55% 0.6
Greater White-fronted Goose -53% 0.7
Nashville Warbler -35% 1.4
Ruby-crowned Kinglet -29% 4.4
Bufflehead -31% 4.1
Lesser Yellowlegs -40% 0.8
Ring-necked Duck -31% 2.8
Solitary Sandpiper -45% 0.6
American Pipit -39% 0.7
Dusky-capped Flycatcher -39% 0.7
American Wigeon -23% 4.5
Cackling Goose -52% 0.4
Black Turnstone -54% 0.3

–––––––––––––––––––––––––––––––––––

Farnsworth and Van Doren

POWERED BY