Pheasants in the mountains
How can three pheasant species coexist on the Qinghai-Tibet Plateau?
Into the pine woods
High group density results in fierce competition between groups of Red-cockaded Woodpecker.
Understanding competition between colonies helps to protect seabirds
High levels of inter-colony competition can lead to segregation of foraging areas.
Battle of the sexes
Niche contraction in females but not males in high density island populations
Kingfisher evolution in the Wallacea region
Differing responses of closely related migratory and resident species
Too close for comfort? Coloniality and density dependence in vultures
Trade-off between the benefits and costs of coloniality in a recovering population of Cinereous Vultures
The real treasure of Juan Fernández
Does a congeneric competitor affect the Critically Endangered Juan Fernández Firecrown?
The riddle of elevation for tropical birds
Does interspecific aggression influence elevational limits in closely related species that replace one another along the elevational gradient?
Ghost robins in the New Guinean cloud forest
Twos company?
Do non-native birds compete or coexist with native species?
Friend or foe?