It aggressively defends nest cavities, possibly to the detriment ... A female orange bishop may be passed off as female house sparrow by observers unfamiliar with the former.

House sparrows will nest near people, usually in building crevices but nest boxes will also encourage sparrows into your space. Blue tits are one of the most attractive and easily recognised birds ...

reaching out to people to increase the population of critically-declining house sparrows. He and his students’ team have managed to bring sparrows to nearly 70% of the 1,000 nests, distributed ...

Western purple martins are North America's largest swallows. They nest in snags near fresh or salt water as well as harbour pilings and crevices in buildings – or rather they did before the ...