The Age of the Blackbird

01 February 1943
Comments Main paper THE potential age, the age to which birds can live, has been the subject of several papers, the earlier ones based on records in captivity, e.g. Gurney (1899), Mitchell (1911), Flower (1925), and the later ones on ringing returns, e.g. Witherby (1926), Ni...
Read More

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

Subscribe Now