Flight distances of Black-billed Magpies in different regimes of human density and persecution

Article Abstract:

The effects of urban density and human persecution on flushing response and flight distance of Black-billed Magpies (Pica pica) were investigated. The results showed that both human density and history of persecution were directly related to flushing response and flight distance. The differences in magpie behavior in urban and rural areas and in areas of persecution and non-persecution show that the birds are highly adaptable and are influenced by human activity.

Animal dispersal, Human-animal relationships

Azure-winged magpies avoid nest predation by nesting near a Japanese lesser Sparrowhawk's nest

Article Abstract:

A study was conducted to investigate the next site selection of Azure-winged magpies based on the location of their nests to Japanese Lesser Sparrowhawks. The concealment of magpie nest was analyzed by measuring leaf cover within 2 m of the nest and observing selected points with the use of a tube. Results indicated that magpies effectively avoid nest predation by exploiting the defending behavior of the Sparrowhawks.

Predation (Biology), Hawks, Bird eggs, Bird nests

Egg recognition in Yellow-billed and Black-billed Magpies in the absence of interspecific parasitism: implications for parasite-host coevolution

Article Abstract:

Research concerning the retention of anti-parasitism host defences through evolution from a common ancestor is presented. The Yellow-billed Magpie, although not parasitized, ejects all foreign eggs, a trait shared by its' nearest relative, the Black-billed Magpie, which is parasitized.

Evolution (Biology), Host-parasite relationships