Field Notes D. Bell June 19, 1987 08:30 On Cape May Lighthouse, USCG, Gregory Point. Observing gull colony. Found the 2 very light-backed gulls, they have a nest on the north-facing p side of the point, about 1/2-way out, and on the cliff-face, ca. 2 m down from the top. A mated pair! Both birds have very light backs (lighter than WG) and their primaries are nearly the same shade as the mantle, possibly even slightly darker than its mantle. It's hard to see, but there appears to be only dark irides (= pupil color). Too far for eye-wings. The 8 may have slightly lighter irides than the ?. These 2 birds really look like Glacours-winged Gulls. They have 2 chicks, about 1.8 weeks old, in the nest. At other nests there are a number of 2-3 week old chicks. Also a few nests with eygs still, but these are in the minority. Most WG here seem to have irises which appear gray-greenish or slate, rather than the yellowish of further south. 0900 - Observed at least 3 very GWG-types - the mated pair; ? another which has some slight shading to its tail. Also saw a sub-adult w/ light shoulder + wings, slightly greyer mantle, and brownish, but hybrid-like primary tips. Eye-ring was yellowish, irides dark & even pigmented. Observing gulls in bridge: 18 good WG, 2 gulls w light PO = back. One bird seen clearly; irides like WG here -> pearl gray/green; eye-ring was pink/orange, however, and 3 birds with hybrid PO-tips darker than mantle, but still lighter than WG). 10:03 - 2 light-backed/prim-axed gulls flew to bridge - both landed, sat next to one another. I think this is a 2nd pair, which might have had a failed nest. Perhaps these were