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Essex--Windsor Solid Waste Authority Regional Landfill
Illustrated Checklist
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Native and Naturalized (104)
Exotic: Escapee (1)
Hybrids (3)
- Herring x Great Black-backed Gull (hybrid) Larus argentatus x marinusLast observed by Jeremy L. Hatt on 7 Dec 2021
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Jeremy L. Hatt on 22 Dec 2020
- Herring x Lesser Black-backed Gull (hybrid) Larus argentatus x fuscusLast observed by Michael McAllister on 9 Mar 2024
Additional Taxa (8)
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Harrison Priebe on 19 Jun 2021