Abstract
This data set was developed to aid in monitoring the effects of climate change on birds. In 2005, this monitoring of bird phenology began with the cooperation of citizen researchers who reported their observation data to the Japan Bird Research Association via the internet. Citizen researchers reported records of the arrival of specific summer and winter visitors, and of the dates that singing by resident bird species was detected. The species selected for monitoring were chosen for reliability of detection and identification: Eastern Spot-billed Duck Anas zonorhyncha, Lesser Cuckoo Cuculus poliocephalus, Common Cuckoo C. canorus, Brown Hawk-Owl Ninox scutulata, Bull-headed Shrike Lanius bucephalus, Eurasian Skylark Alauda arvensis, Barn Swallow Hirundo rustica, Brown-eared Bulbul Hypsipetes amaurotis, Japanese Bush Warbler Cettia diphone, Japanese White-eye Zosterops japonicus, Oriental Reed Warbler Acrocephalus orientalis, Naumann's Thrush Turdus naumanni and Daurian Redstart Phoenicurus auroreus. We expect that this data set will provide useful basic information for various bird studies.
Several descriptive analyses to demonstrate variation in the annual pattern of arrival among years and geography were presented in Figures 1-2 and Electronic Appendices 1-8.
Data download: http://www.bird-research.jp/appendix/br10/10f01.html
