. [Articles about birds from National geographic magazine]. Birds. Photo by George Shiras, 3rd COLONY OF GULLS ON ISLAND ADJOINING TIIL CORMORANTS Here the protective coloration makes them difficult to he seen, whether on skyline or rocks. Contrast with the cormorants on page 438 "1. riioLo lt_\ t^TLOige Sliiras, 3rel GULLS As it was impossihlc to photograph the gulls on the foreground shown in this picture, liccause of their protective coloration when crouched low. the author gradually compelled them to walk to the skyline. In this respect these young gulls possess an obliterative colora
. [Articles about birds from National geographic magazine]. Birds. Photo by George Shiras, 3rd COLONY OF GULLS ON ISLAND ADJOINING TIIL CORMORANTS Here the protective coloration makes them difficult to he seen, whether on skyline or rocks. Contrast with the cormorants on page 438 "1. riioLo lt_\ t^TLOige Sliiras, 3rel GULLS As it was impossihlc to photograph the gulls on the foreground shown in this picture, liccause of their protective coloration when crouched low. the author gradually compelled them to walk to the skyline. In this respect these young gulls possess an obliterative colora- tion quite in contrast to the young cormorants on the adjoining island. 4-14. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Washington, D. C. : National Geographic Society
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Keywords: ., bookpublisherwashingtondcnationalgeographicso, booksubjectbirds
