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Harford
Illustrated Checklist
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Native and Naturalized (331)
Exotic: Escapee (7)
Hybrids (10)
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Joshua Emm on 5 Dec 2016
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Matthew Addicks on 2 Mar 2015
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Braeden Travers on 7 Sep 2023
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Brad Heath on 3 Dec 2023
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Mark R Johnson on 2 Jan 2024
- Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinisLast observed by Jim Stasz on 20 Oct 2002
- Red-shouldered x Red-tailed Hawk (hybrid) Buteo lineatus x jamaicensisLast observed by Jeff Culler on 5 Jun 2023
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Tim Carney on 4 Sep 2023
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Mark R Johnson on 9 Sep 2023
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by John Manger on 4 Sep 2022
Additional Taxa (83)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by John Manger on 28 Oct 2023
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Braeden Travers on 21 Mar 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Braeden Travers on 10 Mar 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Manuel Salgado on 14 May 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Jeff Shenot on 26 Oct 2020
- Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritumLast observed by Mark R Johnson on 11 Jan 2021
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Braeden Travers on 6 Mar 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Lani Hyde on 20 Sep 2023
- yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)Last observed by Jim Wilkinson on 16 Dec 2010
- American/Fish Crow Corvus brachyrhynchos/ossifragusLast observed by Kristopher McDaniel🦜 on 21 Apr 2024
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Matthew Addicks on 28 Apr 2023
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Anonymous eBirder on 5 Nov 2023
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Braeden Travers on 18 May 2023
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by Mark R Johnson on 19 Aug 2017
- Connecticut/MacGillivray's/Mourning Warbler Oporornis/Geothlypis sp. (Mourning-type)Last observed by Mark R Johnson on 16 Sep 2023
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Braeden Travers on 5 Oct 2023