Clutch size and breeding success was related to nest-box size in 215 nests of Tengmalm's owl in the Kauhava region, western Finland in 1966-82. In vole peak years, but not in other years, mean clutch ...

Now's the time to put up your birdhouses. Nesting time for most birds is primarily from mid-April to the end of July. (Serge A. McCabe/2002) CORVALLIS, Ore. - It would be nice to say, "Hang a ...

ABSTRACT Various components of breeding success are predicted to be related to avian nest size because (1) some individuals are physically able to build larger nests than other individuals or (2) ...

Lauder is the champion of bluebird proponents in the Mid-Atlantic. His sensible, durable nest box has safely housed so many thousands of bluebird families in the last 47 years that it was featured ...