Depredation of artificial ground nests was examined in tropical savanna in northern Australia to assess potential predation pressures on nests of the partridge pigeon (Geophaps smithii), a declining tropical granivore. Predation rates were examined at two sites, Kakadu National Park (which supported a relatively high density of partridge pigeons) and Berry Springs (which had greater […]
24 May, watching gulls on rugged cliff top, heard squeaks, female stoat appeared and looked around, then purred, and 3 young appeared “as if from the earth”. Female found a rock pipit’s nest and brought a nestling to young, then disappeared and returned 3 times, each time with a chick. Parent birds kept up cries […]
Mohua (Mohoua ochrocephala) breeding and mortality were studied in the Eglinton Valley, Fiordland National Park, New Zealand. Mohua on the valley floor (380 m a.s.l.) bred from early October until March, though birds at higher altitude in the Eglinton and elsewhere started later. In low altitude areas, most pairs raised two broods a year, but […]
1976, many nest boxes raided by a stoat. In December a litter of stoats found in a nest box, and an adult male stoat found in a nest box that had fallen to the ground.
Of 263 upland duck eggs that failed due to predation, 38 lost eggs to weasels (generally over several days) and 27 of the 38 failed only because of the weasels. Weasels also took eggs from at least 5 of 20 nests that lost 1-7 eggs before the rest hatched. Damage to nest minimal. 12 of […]
Of 59 waterfowl broods monitored in 1959, 3 destroyed by longtails (5%), nests undamaged except for loss of eggs. Paired punctures found in eggs, usually at one end, identical to those made by captive longtail (illustrated).