Mountain Bluebird nestling, just prior to fledgling, in nest cavity bird songbird ornithology nature

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A nestling Mountain Bluebird just prior to fledgling

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Size: 5400px × 3600px
Location: Rocky Mountain National Park Rockies, Colorado, United States
Photo credit: © William Leaman / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: american, aves, avian, bird, birders, birding, birds, birdwatching, bluebird, bluebirds, cavity, currucoides, environment, mountain, nature, nest, nesting, north, ornithology, outdoors, passerine, perching, science, sialia, songbird, songbirds, thrush, thrushes, tree, turdidae, wildlife