• Corpus ID: 84838279

BREEDING BIOLOGY OF GRAY-CROWNED TYRANNULET IN THE MONTE DESERT, ARGENTINA’

@inproceedings{ECOOKE2001BREEDINGBO,
  title={BREEDING BIOLOGY OF GRAY-CROWNED TYRANNULET IN THE MONTE DESERT, ARGENTINA’},
  author={R. I. Goudie E COOKE and Edward Captain Cooke and R. Ian Goudie and S. W. and Boyd and I. R. and Goudie and Margaret R. Petersen and Gregory J. Robertson and Adam Aft and Corey D. Anderson and Ankney and D. H. Johnson and J. A. Kadlec and Lal G and Krapu},
  year={2001}
}

• R. I. G. E COOKE, E. Cooke, +13 authors Krapu
• Published 2001

We present information from 75 nests of Gray-crowned Tyrannulet (Serpophaga griseiceps) found in open Prosopis woodlands of the central Monte desert between 1995 and 1997 and compare it with information corresponding to other species of the genus. Breeding occurred from October to January. Nests are small open cups. Both parents participated in nest building, which lasted 4-7 days. In the ProsoDis woodland, 98% of the nests were built in chaiiar (Giof froea decorticans), which also is commonly used as a nest plant by S. subcristata in east-central Argentina. Mean clutch size did not vary among years nor within the breeding season, and it was similar to that observed in other Serpophaga. Both male and female shared the 13-15 day incubation period. Hatching was asynchronous. Nestling period lasted 13-14 days, during which 1 Received 14 December 1998. Accepted 12 August 1999. z Present address: l? Alameda de Osuna 74 1 C, 28042 Madrid, Spain. both parents reared the chicks. Nesting success (26%) appeared to be less than that previously reported for Nearctic open-nesters (50-600/o), and Neotropical open-nesters in dry (50%) and wet tropics (35%). Egg and nestling predation were the main cause of nest failure.