1877 Chimney Swift Portland 1894 Black Tern Mansfield 1906 Red Crossbill New haven 1924 Purple Gallinule Hadlyme 1981 Rough-legged Hawk Mansfield 1983 Northern Gannet Madison, Hamonasset St. Pk. 1983 Scissor-tailed Flycatcher Madison, Hammonasset St. Pk. 1991 Baird's Sandpiper Old Lyme, Griswold Pt. 1992 Lesser Black-backed Gull Seymour, Peat Swamp Reservoir 1994 4500 Yellow-rumped Warbler Groton, Bluff Pt. 1997 30 Rusty Blackbird Farmington, Farmington Meadows 1997 Swainson's Hawk Greenwich Quaker Ridge 1997 2000 Yellow-rumped Warbler Groton, Bluff Pt. 1998 Bank Swallow New Haven Hudsonian Godwit 3 Records