Brown-headed Cowbird in a  tree where its name becomes more obvious.  Photo by K Clouston

Brown-headed Cowbird in a tree where its name becomes more obvious. Photo by K Clouston

This member of the blackbird family is the only parasitic bird in North America.  They used to follow bison herds in the prairies and couldn’t afford to hang around and raise their young so ‘farmed’ them out to other species.  Now that we have made travel so much easier they have spread outside their former ranges and we find them commonly here in BC.