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All Discussions

Subspecies limits: Grey Partridge Perdix perdix
Species limits: Black-browed Albatross Thalassarche melanophris
Species limits: Kentish Plover Charadrius alexandrinus
Genus limits: Gorsachius magnificus and Gorsachius leuconotus
Subspecies limits: Spot-winged Wood Quail Odontophorus capueira
Subspecies limits: Common Eider Somateria mollissima
Subspecies recognition: Blue Duck Hymenolaimus malacorhynchos
Species limits: Rock Partridge Alectoris graeca
Species limits: Blue Chaffinch Fringilla teydea
Genus limits and English name: Sillem’s Mountain Finch Leucosticte sillemi
Species limits: Narcissus Flycatcher Ficedula narcissina
Genus limits: Rusty-tailed Flycatcher Muscicapa ruficauda
Species limits: Scaly-breasted Wren-babbler Pnoepyga albiventer
Subspecies limits: Spectacled Warbler Curruca conspicillata
Species limits: hort-toed Lark Calandrella brachydactyla
Species limits: Blue Tit Cyanistes caeruleus
New species: Desert Owl Strix hadorami
Subspecies limits: Steppe Eagle Aquila nipalensis
Nomenclature: Common Gull Larus canus kamtschatschensis
Subspecies limits: Little Auk Alle alle

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