Abstract The Willow Tit Poecile montana population in Britain is in serious, long- term decline. It is likely that several factors are responsible for this decline, although those related to habitat change or degradation are thought to be among the most important. So far, there is little evidence that nest predation or competition has had a major effect on this species. This paper presents

...

Stay at the forefront of British birding by taking out a subscription to British Birds.

Subscribe Now