Spotted flycatcher the cuckoo, but became so good at recognising the intruder's eggs that it ceased to be victimised. A contrast to this is the dunnock, which appears to be a recent cuckoo host, since it does not show any egg discrimination. A study conducted at two different locations in southern England found that one third of nests were predated. The Eurasian jay ("Garrulus glandarius") was the most common aerial predator, consuming both eggs and chicks. The domestic cat ("Felis catus") predated a small fraction of the nests. Spotted flycatcher The spotted flycatcher ("Muscicapa striata") is a small passerine bird in the
Salim Ali Bird Sanctuary have been recorded and the common species include the striated heron and western reef heron. Other species that have been recorded include the little bittern, black bittern, red knot, jack snipe and pied avocet (on transient sandbanks). The sanctuary is also host to mudskippers, fiddler crabs and other mangrove habitat specialists. A species of crustacean "Teleotanais indianis" was described based on specimens obtained in the sanctuary. Salim Ali Bird Sanctuary Salim Ali Bird Sanctuary is an estuarine mangrove habitat, which is declared as the bird sanctuary, and located on western tip of the Island of Chorão along the Mandovi River,