Bird Research
Online ISSN : 1880-1595
Print ISSN : 1880-1587
Original Articles
Comparative estimates of fledglings per nest at three Great Cormorant colonies in Tokyo Bay
Michio FUKUDANanae KATO
Author information
JOURNALS FREE ACCESS

Volume 2 (2006) Pages A47-A53

Details
Download PDF (272K) Contact us
Abstract

Three colonies of Great Cormorants Phalacrocorax carbo were surveyed in Tokyo Bay in order to estimate the number of fledglings per nest. Chicks over three weeks of age were considered to be fledglings, and the nest was classified as successful. The number of these chicks per nest was recorded at each colony. We compared the results with similar data collected during each breeding season between 1999 and 2004. Breeding success of each colony was found to fluctuate annually, and some significant differences in fledglings per nest were found between some colonies during some years.

Information related to the author
© 2006 by Japan Bird Research Association
Previous article Next article

Recently visited articles
feedback
Top