In California, Hummingbird Beaks Have Been Transformed by Feeders
The profusion of hummingbird feeders in California homes has not only allowed some hummingbirds to expand their range, but has also altered the shape of their beaks.
The profusion of hummingbird feeders in California homes has not only allowed some hummingbirds to expand their range, but has also altered the shape of their beaks.