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"
Mistle thrush Chough", by Giovanni da Udine, an artist who worked in Raphael's studio in the 16th century, was a sketch for his "Bird with Garland and Fruit", and this in turn was the basis for a Raphael fresco in the Apostolic Palace. The early Renaissance poem "The Harmony of Birds" features a thrusshe (mistle thrush) singing the phrase "sanctus, sanctus", distinguishing the bird from the song thrush, the "mauys" or "throstle". The song of the mistle thrush is also described in Thomas Hardy's "Darkling Thrush" and Edward Thomas's "The Thrush". The loud call of this common and conspicuous bird also led