Song thrush thrush recognizes the cuckoo's non-mimetic eggs. However, the song thrush does not demonstrate the same aggression toward the adult cuckoo that is shown by the blackbird. The introduced birds in New Zealand, where the cuckoo does not occur, have, over the past 130 years, retained the ability to recognise and reject non-mimetic eggs. Adult birds may be killed by cats, little owls and sparrowhawks, and eggs and nestlings are taken by magpies, jays, and, where present, grey squirrels. As with other passerine birds, parasites are common, and include endoparasites, such as the nematode "Splendidofilaria (Avifilaria) mavis" whose specific name "mavis"
Eyebrowed thrush latter having a black eyeline, bordered white above and below. The breast and flanks are orange, and the belly white. The sexes are fairly similar, but immatures have a browner back. The male has a simple whistling song, similar to the related mistle thrush. In 2007 an eyebrowed thrush was sighted at the Jerusalem Bird Observatory in Jerusalem. This is the second recorded sighting in Israel; the first was at Eilat in October 1996. In 2011, an eyebrowed thrush was sighted in Australia, near Malanda in Queensland. This is possibly the first confirmed sighting of the species on the Australian