A captive female Baikal Teal- there is little chance of this small London population of Baikal Teal escaping and colonizing. Nonetheless there are Baikal Teals in London, albiet brought here (and restrained) by another 'animal', but in the past, this practise has proved to be an effective ultra modern (in geological terms) method of range expansion for various species (Ring-necked Parakeet, Ruddy Duck and Mandarin etc). Nature often finds 'new ways'- totally accidently yes but no less a 'new' process of range expansion.1 juv Black-tailed Godwit, 10 Common Tern flew S, 1 eclipse male Wigeon, 50+ Shoveler, 20+ Gadwall, 25+ Teal, 1 Kingfisher, 1 Kestrel
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