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Alexander Lees
Research interests and publications


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Avian dispersal and vagrancy

      
Long-tailed Shrike (Lanius schach), India; Palm Warbler (Dendroica palmarum), Canada; Desert Wheatear (Oenanthe deserti) , Egypt; Black-billed Cuckoo (Coccyzus erythropthalmus), Canada; Pallas's warbler (Phylloscopus proregulus), UK.

    By the examination of trends in "vagrany events" we may be able to discern evidence for:

a) the diagnosis of new migration routes/wintering areas/range expansions
b) population changes within a species' breeding range
c) explaining the observed distribution of species on oceanic islands

d) a more holistic understanding of orientation mechanisms


Yellow-browed Warbler (Phyloscopus inornmatus), UK; White-rumped Sanpiper (Calidris fusicolis), Brazil; Fork-tailed Flycatchers (Tyrannus savana), Brazil; Snowy Owl (Bubo scandiaca), UK.



All Photos © Alexander Lees


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