Distribution and foraging by non-breeding Caspian Terns on a large temperate estuary of south-western Australia – preliminary investigations.

Total Caspian Tern, Hydroprogne caspia, counts at the night roost (grey), all estuary census sites (black) and estuary census sites in the six most abundant areas combined ("six areas", dashed black line) across Peel-Harvey Estuary between 12 November 2018 and 15 March 2019. Keywords: Caspian Terns; coastal seabirds; community composition; ecological health; estuarine system; foraging; Hydroprogne caspia; non-breeding season; Peel-Harvey Estuary; Ramsar; roost site; south-western Australia. Distribution and foraging by non-breeding Caspian Terns on a large temperate estuary of south-western Australia - preliminary investigations Although the roost counts declined greatly in late February, the number of birds censused around the estuary remained high during the day, indicating that the birds had shifted their roosting site to another location close to the estuary. [Extracted from the article]