Why did thousands of crows abandon their roost in Bothell?

<p>After roosting for years on the University of Washington Bothell campus, thousands of crows recently moved to Redmond.&nbsp;</p> <p>Doug Wacker studied the birds at UW Bothell, and he&rsquo;s since tracked down their new roost.</p> <p>We can only make Seattle Now because listeners support us.&nbsp;<a href="https://www.kuow.org/donate/seattlenow">Tap here</a> to make a gift and keep Seattle Now in your feed.&nbsp;</p> <p>Got questions about local news or story ideas to share? We want to hear from you! Email us at <a href="mailto:seattlenow@kuow.org">seattlenow@kuow.org</a>, leave us …