On Jan 26, 2011, at 10:23 PM, Eric Weir wrote: > On Jan 26, 2011, at 9:53 PM, Rob Studdert wrote: > >> Amazing considering only 1/3 of the crows were left, reminded me of >> this vid I watched the other day >> >> http://vimeo.com/18813015 > > That was fascinatint, too. And it led me to this: > http://en.wikipedia.org/wiki/Sort_sol_%28bird_flock%29
And it led me to this: "Communal roosting is common because it lowers the loss of body heat and decreases the risks associated with predators.[130] Roosting sites are often chosen with regard to thermoregulation and safety.[131]" http://en.wikipedia.org/wiki/Roosting#Resting_and_roosting Not that it's the explanation, or even a hypothesis. Just information. ------------------------------------------------------------------------------------------ Eric Weir Decatur, GA USA eew...@bellsouth.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
