When, where, and how far will birds migrate? Our migration forecasts will answer these questions for the first time.
A general quiet late season period in the West will see scattered light flights in the middle of the work week that feature Northern Shoveler, Northern Pintail, Tundra Swan, Northern Harrier, Sandhill Crane, Mew Gull, and Say's Phoebe, while two strong frontal passages will bring light to moderate late season flights of Canada Goose, Tundra Swan, Bufflehead, Long-tailed Duck, Red-throated Loon, American Pipit, White-throated Sparrow, and Dark-eyed Junco to the East.
Scattered light movements will be the norm for this late season period with higher intensities and extents to end the week that will feature Tundra Swan, Green-winged Teal, Gadwall, Lesser Scaup, Pied-billed Grebe, Eared Grebe, Say's Phoebe, and American Pipit, while the East sees a significant early and late period push of moderate to locally heavy movements featuring Redhead, Lesser Scaup, Common Loon, Horned Grebe, Bonaparte's Gull, Hermit Thrush, and Field Sparrow.
Movements in the West were local and light, primarily along the Pacific Coast, featuring Tundra Swan, Common Goldeneye, Bufflehead, Bonaparte's Gull, Golden-crowned Kinglet, Bohemian Waxwing, and Purple Finch, while in the East pulses of sub-regional movements were moderate to locally heavy and featured Greater Scaup, Bufflehead, Hooded Merganser, Red-throated Loon, Horned Grebe, American Robin, American Tree Sparrow, Pine Siskin, and Purple Finch.
The West will experience some conditions favorable for locally light to moderate flights during the middle and latter parts of the period that will feature White-winged Scoter, Surf Scoter, Common Loon, Clark's Grebe, California Gull, Merlin, Ruby-crowned Kinglet, and Dark-eyed Junco, while the East will experience several pulses of such favorable conditions with light to locally heavy movements that features Greater White-fronted Goose, Green-winged Teal, Ring-necked Duck, Canvasback, Red-necked Grebe, Ring-billed Gull, Caspian Tern, Red-winged Blackbird, Fox Sparrow, and Dark-eyed Junco.
A quiet week in the West for migration saw a few, mostly coastal pulses of light to moderate movements featuring Tundra Swan, Red Phalarope, Bonaparte's Gull, Ruby-crowned Kinglet, American Pipit, Cedar Waxwing, and Dark-eyed Junco, while moderate to locally heavy flights associated with frontal passages featured Northern Pintail, Common Goldeneye, Long-tailed Duck, Long-billed Curlew, Northern Shrike, Sedge Wren, and American Tree Sparrow in the East.
Scattered and local light to moderate flights begin and end the period in the West and feature White-winged Scoter, Common Loon, Western Grebe, Red-necked Grebe, Dunlin, Marsh Wren, and White-throated Sparrow, moderate to heavy flights begin and end the period in the East and feature American Wigeon, Surf Scoter, Pied-billed Grebe, Northern Harrier, Sandhill Crane, Dunlin, Sedge Wren, Lincoln's Sparrow, and Pine Siskin.