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Worcester
Illustrated Checklist
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Native and Naturalized (343)
Exotic: Provisional (1)
Exotic: Escapee (14)
Hybrids (10)
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Paul Vanderhoof on 16 Mar 2022
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Edward Kittredge on 6 Sep 2023
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Mary Ess-Why on 17 Sep 2022
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Tom Pirro on 10 Mar 2024
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Valerie Burdette on 13 Feb 2022
- Red-shouldered x Red-tailed Hawk (hybrid) Buteo lineatus x jamaicensisLast observed by Edward Kittredge on 13 Apr 2024
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Robo Bette on 9 May 2023
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Jocelyn Pyne on 15 Jul 2023
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Isaac Grosner on 30 Jul 2023
- Mourning Warbler x Common Yellowthroat (hybrid) Geothlypis philadelphia x trichasLast observed by Cole Winstanley on 16 May 2021
Additional Taxa (100)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Bob Abbott on 23 Jan 2024
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Valerie Burdette on 16 Apr 2024
- Surf/Black Scoter Melanitta perspicillata/americanaLast observed by Valerie Burdette on 10 Nov 2020
- Common/Barrow's Goldeneye Bucephala clangula/islandicaLast observed by Valerie Burdette on 27 Dec 2023
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Valerie Burdette on 13 Mar 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Edward Kittredge on 2 Aug 2023
- Black-bellied Plover/golden-plover sp. Pluvialis sp.Last observed by Valerie Burdette on 6 Sep 2022
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Valerie Burdette on 25 Aug 2022
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Valerie Burdette on 13 Oct 2023
- white-winged gull sp. Larus sp. (white-winged gull sp.)Last observed by James Teitgen on 23 Feb 2024
- Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianumLast observed by Joseph Bourget on 8 Sep 2018
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Timothy Spahr on 12 Aug 2015
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Adam Spellmire on 10 Apr 2024
- Cooper's Hawk/American Goshawk Accipiter cooperii/atricapillusLast observed by Ryan Merrill on 18 Sep 2014
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Wendy Howes on 20 Aug 2023
- Philadelphia/Warbling Vireo Vireo philadelphicus/gilvusLast observed by Rita Grossman on 23 Sep 2023
- vireo sp. (Red-eyed Vireo complex) Vireo sp. (Red-eyed Vireo complex)Last observed by James Teitgen on 14 Aug 2023
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Derek Kurze on 13 Feb 2021
- Gray-cheeked/Bicknell's Thrush Catharus minimus/bicknelliLast observed by Ernie LeBlanc on 27 May 2021
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Bob Abbott on 18 Mar 2024
- Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacutaLast observed by Ernie LeBlanc on 21 Oct 2022
- Lincoln's/Swamp Sparrow Melospiza lincolnii/georgianaLast observed by Matthew Eckerson on 20 Oct 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Jon Skinner on 26 May 2022
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by John Young on 19 May 2022
- Connecticut/MacGillivray's/Mourning Warbler Oporornis/Geothlypis sp. (Mourning-type)Last observed by MAS Broad Meadow Brook on 1 Sep 1994
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Jon Skinner on 23 Aug 2023