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Mazowieckie
Illustrated Checklist
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Native and Naturalized (299)
Exotic: Provisional (1)
Exotic: Escapee (11)
Hybrids (10)
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Hubert Janiszewski on 2 May 2020
- Wood Duck x Mallard (hybrid) Aix sponsa x Anas platyrhynchosLast observed by brian waitkus on 28 Dec 2018
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Sławomir Karpicki on 12 Apr 2007
- Common Pochard x Ferruginous Duck (hybrid) Aythya ferina x nyrocaLast observed by Milosz Cousens on 1 Apr 2023
- Ferruginous x Tufted Duck (hybrid) Aythya nyroca x fuligulaLast observed by Sławomir Karpicki on 5 Jul 2007
- Common Goldeneye x Smew (hybrid) Bucephala clangula x Mergellus albellusLast observed by Jan Rapczyński on 9 Mar 2021
- Caspian x Herring Gull (hybrid) Larus cachinnans x argentatusLast observed by Milosz Cousens on 28 Jan 2022
- Great Spotted x Syrian Woodpecker (hybrid) Dendrocopos major x syriacusLast observed by Mikołaj Przygoda on 27 Feb 2022
- Carrion x Hooded Crow (hybrid) Corvus corone x cornixLast observed by Magdalena Naber on 7 Apr 2024
- Eurasian Blue x Azure Tit (hybrid) Cyanistes caeruleus x cyanusLast observed by Maksymilian Wojtkiewicz on 18 Feb 2024
Additional Taxa (56)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Agnieszka Kosicka on 27 Feb 2023
- Ring-necked/Green Pheasant Phasianus colchicus/versicolorLast observed by Kacper Pietrenko on 4 Jun 2023
- Caspian/Herring/Yellow-legged Gull Larus cachinnans/argentatus/michahellisLast observed by Tomasz Gustyn on 23 Apr 2024
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Anonymous eBirder on 4 Sep 2023
- Marsh/Common Reed Warbler Acrocephalus palustris/scirpaceusLast observed by ADAM GRABOWSKI on 11 Jun 2023
- Willow Warbler/Common Chiffchaff Phylloscopus trochilus/collybitaLast observed by Joanna Witowska on 15 Sep 2023
- Eurasian/Short-toed Treecreeper Certhia familiaris/brachydactylaLast observed by Mikołaj Krzyżanowski on 14 Apr 2024
- Thrush/Common Nightingale Luscinia luscinia/megarhynchosLast observed by Graham B Langley on 13 Jun 2005
- European Pied/Collared Flycatcher Ficedula hypoleuca/albicollisLast observed by Franciszek Konrad on 2 May 2016
- Common/Black Redstart Phoenicurus phoenicurus/ochrurosLast observed by Robin Stobart on 10 Jul 2022
- House/Eurasian Tree Sparrow Passer domesticus/montanusLast observed by Anonymous eBirder on 21 Apr 2024