| 2000 | | Geb, F: 21,3x27,5 cm, 125 Zeichnungen, 93 Tabellen. | WG: Buch | | The changing abundance of cowbirds and the ways in which their numbers can be estimated. Host choice by cowbirds, the negative effects of cowbirds on particular host species, and the daily patterns of cowbird behavior. Behavioral interactions between cowbirds and specific host species. Patterns of cowbird abundance and host use across varying landscapes. Management programs designed to control cowbirds and protect threatened songbirds. | [E] | |