@article {404,
	title = {Long-term trend toward earlier breeding in an American bird: a response to global warming?},
	journal = {Proceedings of the National Academy of Science},
	volume = {96},
	year = {1999},
	note = {Corvidae},
	pages = {5565-5569},
	keywords = {yesnest},
	author = {Brown, J. L. and S.-H. Li and N. Bhagabati}
}
