Brown-headed Gull Chroicocephalus brunnicephalus
Average number of individuals by week based on Singapore Bird Database data, Jul 2012 to Jun 2022 (all records)
Early date 11 Nov 1967
Late date 22 Mar 1986
Bar chart not displayed for this species; no records in the given time period.
Similar to the Black-headed Gull, but much rarer. Last recorded in Dec 1999.