The absence of a peregrine falcon couple from UC Berkeley’s famous Campanile this January has alarmed a group of observers who fear the avian flu has claimed the birds as its latest victims.

A famous female falcon that has lived atop UC Berkeley’s Campanile bell tower for years has been missing in recent weeks along with her latest mate, and experts who monitor the birds worry that they might have fallen victim to the highly contagious avian flu.

Anne Makovec reports on concerns over the long absence of UC Berkeley's famous female falcon Annie and her mate from their Campanile nest.