The Vesper Sparrow is also known as a Bay-winged Bunting in Yellowstone Park.
The Horned Lark feeds in the grass.
The Vesper Sparrow is also known as a Bay-winged Bunting in Yellowstone Park.
The male Mountain Blue Bird is visible in the grass.
The bird is feeding in the weftlands grasses in Yellowstone.
Canada Goose bedded down.
The House Finch perches in an Aspen tree.
The Sage Sparrow sings from the sagebrush.
This Killdeer birds nest has four eggs.
The House Finch perches in an Aspen tree.
The House Finch perches in an Aspen tree.
The House Finch perches in an Aspen tree.
See photo in original gallery.