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Bastaardarend

Clanga clanga  ·  Greater Spotted Eagle

id 66984
datum 6 mei 2016
gemeente Houten (UT)
locatie Houten (gemeente)
co√∂rdinaten N 51.97181  O 5.1672
aantal, kleed 1, subadult
soort waarneming veldwaarneming
status Aanvaard, gepubliceerd in jaarverslag CDNA
waarnemer(s) B. Rijksen, R. Rijksen
opmerkingen 6 May, Lekdijk, Houten, and Polder Everdingen, Vianen, Utrecht, subadult, photographed (B Rijksen, R Rijksen). With the ongoing decrease of the western population combined with regular hybridization with Lesser Spotted Eagle A pomarina (cf Lontkowski & Maciorowski 2010), the identification of these two eagle species has not become any easier, especially since most records concern fly-bys. The CDNA therefore developed a review protocol. Baseline of this protocol is that several but not all hybrid features need to be judged in order to rule out a hybrid with reasonable certainty. No hybrid features were found in the first bird, whereas the excellent photographs of the second ticked all the right boxes for a pure bird. Annual Report 2016.
gekoppelde gevallen 66984 6 mei 2016
Houten (UT) Houten (gemeente)
67953 6 mei 2016
Vijfheerenlanden (UT) Polder Everdingen

Foto's

Bram Rijksen · Bastaardarend Bram Rijksen · Bastaardarend

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