Cliff Swallow (Hirundo pyrrhonota) flying over creek, Heyden Valley, Yellowstone NP, Wyoming

---

Size: 5184px × 3456px
Photo credit: © Duncan Usher / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: birds, breeding, cliff, creek, flock, flying, heyden, national, park, season, summertime, swallow, swallows, usa, valley, wildlife, wyoming, yellowstone