The findings are part of a long term study being carried out on populations of great tits in Wytham Woods, and in Oosterhout and Veluwe, in the Netherlands. (sciencedaily.com)
We experimentally demonstrated that the simulated presence of flycatchers affected the egg covering behaviour of great tits in two distant study areas. (bmcevolbiol.biomedcentral.com)
A recent study has shown genetic differences between rural and urban great tit populations which suggests this may be the case. (scientificamerican.com)