HOMECONTACT

Birds: Arrival and Departure Dates

These dates indicate the approximate arrival and departure times of migrants commonly seen in Marin County. Some individuals usually will be found both before and after these periods.

February | March | April | May | June | July | August | September | October | November | December | Locations
FEBRUARY	Arrivals	Early	Allen's Hummingbird
		Mid	Violet-green Swallow
	Departures	Mid	Heermann's Gull
MARCH	Arrivals	Early	Rufous Hummingbird, Barn Swallow
		Mid	Red Knot, Caspian Tern, Northern Rough-winged Swallow, Cliff Swallow, Bullock's Oriole
		Late	Pacific-slope Flycatcher, Wilson's Warbler
APRIL	Arrivals	Early	Warbling Vireo
		Mid	Vaux's Swift, Ash-throated Flycatcher, Western Kingbird, Cassin's Vireo, Swainson's Thrush, Yellow Warbler, Black-throated Gray Warbler, Western Tanager, Chipping Sparrow, Black-headed Grosbeak
		Late	Sabine's Gull, Olive-sided Flycatcher, Western Wood-Pewee, Lazuli Bunting
	Departures	Mid	Bufflehead, Say's Phoebe
		Late	American Wigeon, Black Scoter, Thayer's Gull, Fox Sparrow
MAY	Arrivals	Early	Grasshopper Sparrow
	Departures	Early	Northern Fulmar, Green-winged Teal, Canvasback, Ring-necked Duck, Common Goldeneye, Greater Yellowlegs, Red Knot, Least Sandpiper, Wilson's Snipe, Mew Gull, Herring Gull, Varied Thrush, Lincoln's Sparrow
		Mid	Horned Grebe, Red-necked Grebe, Eared Grebe, American White Pelican, Semipalmated Plover, Wandering Tattler, Spotted Sandpiper, Ruddy Turnstone, Black Turnstone, Surfbird, Sanderling, Western Sandpiper, Dunlin, Short-billed Dowitcher, Long-billed Dowitcher, Black-legged Kittiwake, Rufous Hummingbird, American Pipit, Cedar Waxwing, Townsend's Warbler, Golden-crowned Sparrow
		Late	Brant, Northern Shoveler, Pomarine Jaeger, Bonaparte's Gull, Sabine's Gull, Ruby-crowned Kinglet
JUNE	Arrivals	Mid	Heermann's Gull
		Late	Elegant Tern
	Departures	Early	Red-breasted Merganser
JULY	Arrivals	Early	Greater Yellowlegs
		Mid	Lesser Yellowlegs, Wandering Tattler, Western Sandpiper, Short-billed Dowitcher
		Late	Northern Fulmar, American White Pelican, Spotted Sandpiper, Black Turnstone, Surfbird, Least Sandpiper, Common Tern
AUGUST	Arrivals	Early	Buller's Shearwater, Northern Shoveler, Red-breasted Merganser, Ruddy Turnstone, Red Knot, Sanderling, Long-billed Dowitcher, Parasitic Jaeger, Sabine's Gull
		Mid	Eared Grebe, Green-winged Teal, Semipalmated Plover, Wilson's Phalarope, Red-necked Phalarope, Red Phalarope, Bonaparte's Gull, Townsend's Warbler
		Late	Brant, American Wigeon, Wilson's Snipe
	Departures	Mid	Allen's Hummingbird
SEPTEMBER	Arrivals	Early	Canvasback, Pomarine Jaeger, Cedar Waxwing
		Mid	Ring-necked Duck, Dunlin, Black-legged Kittiwake, Say's Phoebe, Ruby-crowned Kinglet, American Pipit, Fox Sparrow, Lincoln's Sparrow
		Late	Horned Grebe, Bufflehead, Common Goldeneye, Mew Gull, Herring Gull, Varied Thrush, Golden-crowned Sparrow
	Departures	Mid	Olive-sided Flycatcher, Western Kingbird, Grasshopper Sparrow, Bullock's Oriole
		Late	Lazuli Bunting
OCTOBER	Arrivals	Mid	Black Scoter, Thayer's Gull
	Departures	Early	Wilson's Phalarope, Western Wood-Pewee, Ash-throated Flycatcher, Cliff Swallow, Black-headed Grosbeak
		Mid	Sabine's Gull, Caspian Tern, Vaux's Swift, Pacific-slope Flycatcher, Cassin's Vireo, Warbling Vireo, Northern Rough-winged Swallow, Swainson's Thrush, Yellow Warbler, Black-throated Gray Warbler, Western Tanager, Chipping Sparrow
		Late	Wilson's Warbler
NOVEMBER	Departures	Early	Buller's Shearwater, Red-necked Phalarope, Elegant Tern, Common Tern, Violet-green Swallow, Barn Swallow
		Mid	Red Knot
		Late	Lesser Yellowlegs
DECEMBER	Departures	Early	Parasitic Jaeger
		Late	Red Phalarope

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