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Waldo
Illustrated Checklist
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Native and Naturalized (308)
Exotic: Escapee (6)
Hybrids (6)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by John Wyatt on 9 Mar 2024
- Redhead x Ring-necked Duck (hybrid) Aythya americana x collarisLast observed by Fyn Kynd on 5 Apr 2019
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by John Wyatt on 9 Mar 2024
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Kyle Lima on 28 Feb 2015
- Herring x Lesser Black-backed Gull (hybrid) Larus argentatus x fuscusLast observed by Fyn Kynd on 4 Feb 2019
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Kim Clark on 2 Jun 2019
Additional Taxa (73)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Karen Bohanan on 31 Aug 2023
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Kathy Ferguson on 16 Feb 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Logan Parker on 1 Aug 2018
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Mark Forney on 2 Jul 2022
- Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritumLast observed by tom aversa on 17 Nov 2021
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by tom aversa on 2 Sep 2023
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by William Perro on 2 Oct 2019
- Gray-cheeked/Bicknell's Thrush Catharus minimus/bicknelliLast observed by Karen Blatchford on 14 May 2020
- Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacutaLast observed by Anonymous eBirder on 20 Jun 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by tom aversa on 30 Jul 2022