There are two summary articles here about birds--- stress in nesting tree swallows and kea using a stick tool (w/ video).
http://www.sciencenews.org/view/generic/id/330924/title/News_in_Brief_Life ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html
