29
Bastaardarend
Clanga clanga · Greater Spotted Eagle
id | 66984 | |
---|---|---|
datum | 6 mei 2016 | |
gemeente | Houten (UT) | |
locatie | Houten (gemeente) | |
coördinaten | 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
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