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Ulaanbaatar
Illustrated Checklist
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Native and Naturalized (360)
Exotic: Escapee (1)
Hybrids (4)
- Gadwall x Falcated Duck (hybrid) Mareca strepera x falcataLast observed by ADIYA OCHIRbat on 9 Apr 2022
- Mallard x Eastern Spot-billed Duck (hybrid) Anas platyrhynchos x zonorhynchaLast observed by Silas Olofson on 11 Jun 2019
- Black-throated x Red-throated Thrush (hybrid) Turdus atrogularis x ruficollisLast observed by Sarangerel Ichinkhorloo on 21 Apr 2024
- Dusky x Naumann's Thrush (hybrid) Turdus eunomus x naumanniLast observed by Daniel López-Velasco | Ornis Birding Expeditions on 21 May 2023
Additional Taxa (37)
- fork-tailed swift sp. Apus pacificus/salimalii/leuconyx/cookiLast observed by Neil Hughes on 10 Jun 2017
- Siberian/Tibetan Sand-Plover Anarhynchus mongolus/atrifronsLast observed by Ray O'Reilly on 24 May 2023
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Katherine Leung on 15 Jul 2023
- Western/Siberian House-Martin Delichon urbicum/lagopodumLast observed by Sam Pitt Miller on 7 Aug 2023
- Taiga/Red-breasted Flycatcher Ficedula albicilla/parvaLast observed by Anonymous eBirder on 18 May 2020
- Western/Eastern Yellow Wagtail Motacilla flava/tschutschensisLast observed by Henk van der Jeugd on 15 Aug 2023