San Antonio Urban Nature's Week in Photos, May 9-15

A Black-chinned Hummingbird prepares to fly from the top of a dead tree in Stone Oak Park, San Antonio, May 9. Photo: Chris Belcher

A Neotropical Cormorant dries its wings on a branch above Converse City Lake May 10. Photo: Chris Belcher

A Green Heron perched above Cibolo Creek in Crescent Bend Nature Park, Schertz, Texas. Photo: Chris Belcher

A bee collects pollen from a prickly pear cactus blossom alongside the Cibolo Creek Primitive Trail, Universal City, Texas. Photo: Chris Belcher

A red dixie cup rests in the grass on the bank of Cibolo Creek. Litter like this is one reason the San Antonio River gets an F rating for trash on the annual river report. Photo: Chris Belcher