Title: Helping and communal breeding in birds
Subjects: Evolution, Ecology, Behavior, Reproduction, Birds, Mares Oceanicas, Ocean circulation, Meeresströmung, Oceanografia Fisica, Circulation océanique, Rainbow, Bruthelfer, Sociaal diergedrag, Mœurs et comportement, Koloniebrüter, 42.83 birds, Vögel, Broeden, Vogels, Animal Behavior, Évolution, Evolutie, Sozialverhalten, Écologie, Oiseaux, Birds, behavior, Rainbows, Earth sciences