Guardian Camera Club: Stuart Whyte on workplace photography

Portrait . The Worton Park study is primarily aimed at collecting data on common breeding birds. It is led by a licensed ringer working on behalf of the British Trust for Ornithology (BTO). Elements of the data collected, particularly information on timing of moult and development of brood patches (and general breeding condition) are vital for understanding how climate change is affecting birds. They contribute to a far larger national data set held by the BTO. Photograph: Stuart Whyte/Flickr Photograph: Action images Tools Photograph: Stuart Whyte/Flickr Ringing . Placing id ring onto a Great tit Photograph: Stuart Whyte/Flickr Bird ID . Owain checks tail feathers to help age the bird Photograph: Stuart Whyte/Flickr Blue tit (Cyanistes caeruleus). The catch Photograph: Stuart Whyte/Flickr Records . Recording all birds caught Photograph: Stuart Whyte/Flickr