The slaty-backed gull is a large, white-headed gull that breeds on the north-eastern coast of the Palearctic, but travels widely during nonbreeding seasons. It is similar in appearance to the western gull and the glaucous-winged gull. Another alternate name is Pacific gull, though it also applies to a Southern Hemisphere species, L. pacificus.
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Low-Light Telephoto Systems
Identifying specific features of the Slaty-backed Gull requires high-contrast magnification. Check out the top-rated 8x42 optics.