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Vale Gierzwaluw

Apus pallidus  ·  Pallid Swift

id 67829
datum 15 november 2018
gemeente Katwijk (ZH)
locatie Telpost De Puinhoop
coördinaten N 52.21323  O 4.4044
aantal, kleed 1, eerste-kalenderjaar
soort waarneming veldwaarneming
status Aanvaard, gepubliceerd in jaarverslag CDNA
waarnemer(s) G. Twigt
opmerkingen 15 November, 1cy, photographed (G Twigt). Despite the first record being as recent as 2006 and the second in 2013, sightings have now become fairly predictable: in most years birds occur after (strong) southerlies in late autumn. The 2018 influx, however, that also reached other parts of north-western Europe, was something else! An astonishing 14 birds were seen, more than doubling the number of records. Surely, they must at least occasionally be present – but overlooked – during months when Common Swifts A apus are more plentiful? Note that on 11 November, no less than three individuals were present on Texel. In Flevoland, a second swift was initially reported to be a Common but eventually two Pallid were submitted. Only a few photographs showed diagnostic features and since it was unclear which bird was on which photograph, the CDNA decided to accept only one. Of interest is that none of the three not accepted records were certain Common Swifts. These birds were all considered unidentifiable swifts so in reality more Pallids could have been involved. Annual Report 2018.

Foto's

Gijsbert Twigt · Vale Gierzwaluw Gijsbert Twigt · Vale Gierzwaluw

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