1. Animal Behavior: Timing in the Wild
Jonathon D. Crystal 
Current Biology 
Volume 16, Issue 7, Pages R252-R253 (April 2006)
DOI: /j.cub
Copyright © 2006 Elsevier Ltd Terms and Conditions

2. Figure 1 Rufous hummingbird (Selasphorus rufus).
Hummingbirds feed at numerous flowers throughout the day. Recent research by Henderson et al. [1] suggests that hummingbirds update a representation of when and where they fed after each visit. (Photo courtesy of Andrew Hurly.)
Current Biology  , R252-R253DOI: ( /j.cub )
Copyright © 2006 Elsevier Ltd Terms and Conditions