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1 July 2003 A comparison of the breeding ecology of Collared Flycatchers nesting in boxes and natural cavities
Cezary Mitrus
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Abstract

I compared the breeding ecology of Collared Flycatchers (Ficedula albicollis) breeding in natural and artificial nest sites in old-growth, oak-lime-hornbeam stands of the Białowieża Forest, eastern Poland, from 1993 to 1999. There were no significant differences in laying date, clutch size, partial clutch losses, partial brood losses, or number of offspring fledged between pairs breeding in natural cavities and nest boxes; however, predation rates were significantly greater in natural cavities. Predation rates may be higher in natural cavities because, under natural conditions like that of the Białowieża Forest, predators may lack experience with artificial nest sites. These results indicate that studies using box-nesting bird populations should be regarded with caution, especially when they involve predation or predator-prey relationships.

Cezary Mitrus "A comparison of the breeding ecology of Collared Flycatchers nesting in boxes and natural cavities," Journal of Field Ornithology 74(3), 293-299, (1 July 2003). https://doi.org/10.1648/0273-8570-74.3.293
Received: 6 March 2002; Accepted: 1 December 2002; Published: 1 July 2003
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KEYWORDS
Białowieża Forest
breeding success
cavity nesters
nest sites
predation
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