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Lakefront Park and Sanctuary, Hammond
Illustrated Checklist
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Native and Naturalized (270)
Exotic: Provisional (1)
Hybrids (5)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Ethan Gyllenhaal on 29 Jan 2011
- Common Goldeneye x Hooded Merganser (hybrid) Bucephala clangula x Lophodytes cucullatusLast observed by Geoffrey A. Williamson on 15 Jan 2005
- Laughing x Ring-billed Gull (hybrid) Leucophaeus atricilla x Larus delawarensisLast observed by Carl Huffman on 11 Feb 2017
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Geoffrey A. Williamson on 24 Jan 2009
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Michael Topp on 17 Sep 2019
Additional Taxa (30)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Matthias Benko on 9 Sep 2017
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Michael Topp on 20 Sep 2019
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Kenneth Wysocki on 18 May 2018
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Michael Topp on 29 May 2021