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Siberische Boompieper

Anthus hodgsoni  ·  Olive-backed Pipit

id 29411
datum 25 oktober 2013
gemeente Katwijk (ZH)
locatie Puinhoop, Katwijk aan Zee
co√∂rdinaten N 52.21375  O 4.4046
aantal, kleed 1
soort waarneming veldwaarneming
status Aanvaard, gepubliceerd in jaarverslag CDNA
waarnemer(s) W. Halfwerk et al
opmerkingen 25 October, Puinhoop, Katwijk aan Zee, Katwijk, Zuid-Holland, sound-recorded (W Halfwerk et al). Martin (2013) described a method to separate Olive-backed Pipit from Tree Pipit A trivialis by call, based on various parameters such as pitch and modulation. The CDNA used this method for sound-recordings of assumed Olive-backed recorded. The records at Vulkaan, Den Haag, Zuid-Holland, on 21 October 2011 are of two different individuals, both sound-recorded when passing this watchpoint. The totals for 2011 and 2012 now stand at six and 23 individuals, respectively. Several sound-recorded inviduals from 2013 and earlier years have only recently been submitted. Annual Report 2013.

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Wouter Halfwerk · Siberische Boompieper

waarneming.nl

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