Black-tailed Godwit is Red-listed Bird of Conservation Concern in the UK and listed as Vulnerable on a European scale. In the UK it appears as a migrant breeder and a passage/winter visitor. Two subspecies occur in Britain, limosa and islandica; the former breeding in small number in Britain but mainly on continental Europe, islandica breed in Iceland.  The sub-species islandica passes through the Humber in large numbers from July onwards as individuals head to their preferred wintering grounds located further south. Peak counts occurred in August with the Humber supporting 2,951 (latest five-year WeBS average) – the Humber is ranked as the 10th estuary in the UK.

A small population remains on the Humber in winter and birds are regularly caught in saltmarsh pools at night. The HWRG individual colour-ringing scheme has produced some interesting re-sightings between Iceland and the Iberian Peninsula.  The sub-species islandica passes through the Humber in large numbers from July onwards as individuals head to their preferred wintering grounds located further south. Peak counts occurred in August with the Humber supporting 2,951 (latest five-year WeBS average) – the Humber is ranked as the 10th estuary in the UK. A small population remains on the Humber in winter and birds are regularly caught in saltmarsh pools at night. The HWRG individual colour-ringing scheme has produced some interesting re-sightings between Iceland and the Iberian Peninsula.