1069Re: [wsbn] More Tales of the Tailless
- Oct 2, 2006And another question... why do so many birds announce their arrival at a food source? aren't predators listening? and don't predators cue (queue!) on vocals?Curious George----- Original Message -----From: larry arnoldSent: Monday, October 02, 2006 3:16 PMSubject: Re: [wsbn] More Tales of the TaillessCurrently in our yard... one tailless scrub-jay and one tailless black-chinned hummingbird, both entertaining to watch. hmmm... what the heck are birds' tails for? help with birders' IDs? easy plucking by predators? control of guidance and maneuverability? both birds seem to navigate just fine without their tails, so why should they expend energy to grow 'em? tisk tiskLarry.
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