Average number of individuals by week based on Singapore Bird Database data, Jul 2012 to Jun 2022 (
Jan 01-Jan 07, Jan 08-Jan 14, Jan 15-Jan 21 (12 more)
10 Dec 2017
23 Mar 2018
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This species has a wide breeding range in the Palearctic, wintering mostly in India. Vagrants have been recorded as far east as Japan, and as far west as Spain.