Roosting Habits, Sexual Dominance and Survival in the Great Tit

Abstract

In order that a place may be suitable for an animal to live in, it should be able to satisfy all its essential requirements. It should be a habitat where the animal can feed, hide, sleep and breed all within easy reach of its cruising radius. A habitat becomes suboptimal or marginal when one or more of these requirements are only just fulfilled. No animal can live in a place where the fulfilment of one of them is wanting.