Tuesday, May 15, 2012
Eastern Kingbirds raise three to four young, but only one clutch per year. The thought is that procuring flying insects is energetically expensive and relatively difficult. The birds have a particularly hard time feeding large broods during wet, cool summers. Furthermore, the parents care of their young for three to five weeks, thus curtailing any time for a second brood (Murphy 1996). The fledglings at the bottom of this post are from South Dakota; I saw the bird above during Saturday's Rice Co. Big Day attempt. I will report on our census in a subsequent post.
Posted by Dan Tallman at 9:22 AM