The use of ringing recoveries -- a conventional method used to study bird migration -- in combination with more modern techniques such as species distribution modelling and stable isotope analysis is ...

Birds of prey may be thought of as fierce foes, but scientists find that some males disguise themselves as peaceful females. These males belong to a species of raptor known as the marsh harrier. Using ...

One of the most spectacular sights at RSPB Old Hall Marshes is the magnificent Marsh Harrier arriving in droves to roost during the winter. The resident breeding population is added to by birds ...

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Over 40% of male marsh harriers look like females, spending their lives sporting the brown plumage and white heads characteristic of females. They’re one of only two bird species that does this.

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

1. Theories postulating that sexual task differentiation may lead to polygamy such that the sex investing the least effort in raising the offspring, engages in simultaneous matings, contrast with ...

Hen harriers are always exciting birds to see and in winter there is always the chance of finding one or more around the Humber estuary.

Birds of prey may be thought of as fierce foes, but scientists find that some males disguise themselves as peaceful females. These males belong to a species of raptor known as the marsh harrier. Using ...