A Case of Brood Mixing by Common Loons
A case of brood mixing by Common Loons.-Common Loons (Gavia immer) are strongly territorial when rearing chicks (McIntyre 1975), and there is only one previous report of brood mixing in this species. Eckstein (1980) reported the successful fostering of a Common Loon chick by a pair with their own chick after a second chick was introduced by humans. We report here the details of a natural case of brood mixing by Common Loons.
Strong, P. I. V., J. A. Bissonette, and R. Souza 1986. A case of brood mixing by common loons. Wilson Bulletin 98:478-479.