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Knox
Illustrated Checklist
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Native and Naturalized (301)
Exotic: Provisional (1)
Exotic: Escapee (11)
Hybrids (7)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by Puma Pheasant on 20 Mar 2024
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Morton Massey on 21 Nov 2015
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraLast observed by Morton Massey on 19 Mar 2016
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Robert Rybczynski on 13 Apr 2024
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by K Dean Edwards on 14 Mar 2024
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Jacob Wessels on 5 Sep 2020
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by michele ramsey on 22 Aug 2015
Additional Taxa (65)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Michael Ryon on 21 Feb 2024
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Laura Tappan on 21 Jan 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Patrick Rakes on 17 Mar 2023
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Toby Koosman on 21 Oct 2022
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Eric Bodker on 25 Mar 2023
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Eric Frazier on 17 May 2023
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Chris Welsh on 3 Mar 2017
- Downy/Hairy Woodpecker Dryobates pubescens/villosusLast observed by Anonymous eBirder on 4 Mar 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by K Dean Edwards on 30 Sep 2023
- Philadelphia/Warbling Vireo Vireo philadelphicus/gilvusLast observed by Kirk Huffstater on 1 Oct 2023
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Lexi Tinker on 7 Apr 2024
- Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacutaLast observed by Joseph C Howell on 13 Oct 1957
- Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalusLast observed by Karin Beuerlein on 25 Oct 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Colin Sumrall on 24 Apr 2024
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by Joseph C Howell on 15 Apr 1972
- Connecticut/MacGillivray's/Mourning Warbler Oporornis/Geothlypis sp. (Mourning-type)Last observed by Joseph C Howell on 17 May 1966