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"
That's What Friends Are For (The Swarbriggs song) That's What Friends Are For (The Swarbriggs song) That's What Friends Are For was the Irish entry in the Eurovision Song Contest 1975, performed in English by The Swarbriggs. The song is in a moderate tempo, with the singers calling on their listeners to help each other in times of need, because "That's what friends are for". The call is made to everyone in the world, rather than just those who know the needy person at the time. The performance is notable for the fact that the singers wore identical electric blue suits, taking full advantage of the increasing trend