Nancy and I were at Meydenbauer Park in Bellevue when we saw this Killdeer. A crow was hopping about nearby and it seemed to be causing the killdeer some concern. We wondered whether the crow was going to harm it in some way when we suddenly realized that the killdeer was far from defenseless. It suddenly went on the attack and charged the crow which freaked out and took off. There was I worried about this bird and it was totally in control.