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Pasco
Illustrated Checklist
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Native and Naturalized (343)
Exotic: Provisional (3)
Exotic: Escapee (27)
Hybrids (10)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by Colin Gjervold on 7 Jan 2006
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Bill Pranty on 2 Sep 2020
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Bill Pranty on 27 Dec 1990
- Mallard x Mottled Duck (hybrid) Anas platyrhynchos x fulvigulaLast observed by Cecile & Morris Yarrow on 15 Apr 2024
- Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinisLast observed by Tony Leukering on 26 Dec 2014
- Little Blue Heron x Snowy Egret (hybrid) Egretta caerulea x thulaLast observed by Vince Capp on 14 Sep 2022
- Yellow-bellied x Red-naped Sapsucker (hybrid) Sphyrapicus varius x nuchalisLast observed by Ken Tracey on 20 Nov 2016
- Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbulaLast observed by Joe Colontonio on 13 Apr 2015
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Dave Bowman on 7 Sep 2018
Additional Taxa (74)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Dave Bowman on 22 Dec 2022
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Bill Pranty on 19 Apr 2015
- Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandriLast observed by Tony Leukering on 27 Dec 2017
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Ami Parrino on 11 Feb 2023
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Gillian Lankshear on 8 Jan 2024
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Rhett Harper on 23 Mar 2019
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Drew Dickert on 10 Apr 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Dave Bowman on 3 Oct 2021
- Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacutaLast observed by Dave Bowman on 9 Nov 2012
- Lincoln's/Swamp Sparrow Melospiza lincolnii/georgianaLast observed by Tony Leukering on 22 Dec 2013
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by John McCallister on 14 Apr 2024