Signs of spring

March 5, 2013
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Although winter officially lasts a few more weeks, many wild animals on the PAWS campus are already feeling the approaching spring. Small birds like this Dark-eyed Junco are still foraging together in their winter feeding flocks, but there is palpable tension within the groups. Formerly content to feed side by side with one another, some of the male birds have begun to squabble when they feel a fellow flock member has come too close. They have also begun to tentatively sing their trilling territorial calls. These behaviors indicate a rise in hormone levels as the breeding season nears. (Kevin Mack)

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