Sabine's gull steals eggs from nesting colonies of Arctic terns. The Sabine's gull is a small gull, in length and weighing . The wings are long, thin and pointed with a span of between . The bill, which is black with a yellow tip, is around long. This species is easy to identify through its striking wing pattern. The adult has a pale grey back and wing coverts, black primary flight feathers and white secondaries. The white tail is forked. The male's hood darkens during breeding season. Young birds have a similar tricoloured wing pattern, but the grey is replaced by brown,
Fork-tailed flycatcher of this species. The fork-tailed flycatcher has the longest tail relative to body size of any bird on earth. The tail in adult males is 2–3 times longer than the length of the bird from the bill to the base of the tail. This species is primarily an insectivore, but will switch to berries and small fruits during winter if insects become scarce. Fork-tailed flycatcher The fork-tailed flycatcher ("Tyrannus savana") is a passerine bird of the tyrant flycatcher family, and is the member of a genus typically referred to as kingbirds. This bird occurs in a wide variety of habitats