'The ruby-throated one of these can migrate 500 miles while burning off only slightly more than one gram of fat'
a hummingbird
GIVING YOU THE BIRD: The ruby-throated one of these can migrate 500 miles while burning off only slightly more than one gram of fat
The ruby-throated one of these can migrate 500 miles while burning off only slightly more than one gram of fat
The ruby-throated one of these can migrate 500 miles while burning off only slightly more than one gram of fat
GIVING YOU THE BIRD
a hummingbird
GIVING YOU THE BIRD