@article{Evangelista2010, 
	title={Hovering energetics and thermal balance in Annaʼs hummingbirds (Calypte anna).}, 
	volume={83}, url={http://www.ncbi.nlm.nih.gov/pubmed/20350142}, 
	number={3}, 
	journal={Physiological and biochemical zoology PBZ}, 
	author={Evangelista, Dennis and Fernández, María José and Berns, Madalyn S and Hoover, Aaron and Dudley, Robert}, 
	year={2010}, 
	pages={406--413}
}