Round 2, Side A: Match 23
[Image ID: Two pictures of gulls. The left is a lava gull standing in sand. The right is a Franklin's gull walking along a pebbly bank. /End ID]
lava gull vs Franklin's gull
Voting ended onMay 10, 2023
The lava gull (Leucophaeus fuliginosus) is the rarest gull in the world. They are found only on the Galápagos Islands, predominantly the Santa Cruz, Isabela, San Cristobal, and Genovesa islands, with an estimated population of 300-600 individuals. They typically measure 51-55 cm (20-22 in) in length. Unlike other hooded gulls, their sooty brown-to-black head does not vary by season. They have red eyelids and white eye crescents. Their body is dark grey with paler grey underparts, their bill and legs are black, and their wings are dark grey with a white leading edge. On Genovesa they exploit the kleptoparasitic behavior of the magnificent frigatebird, capitalizing on botched attempts by the frigatebirds to steal fish from other seabirds. Unlike most gulls which nest close together, they are solitary nesters. They are listed as vulnerable by the IUCN.
The Franklin's gull (Leucophaeus pipixcan) is a small gull found in central Canada and northern United States and migrates to winter in Argentina, Chile, Peru, and the Caribbean. They typically measure 32-36 cm (13-14 in) in length and 85-95 cm (33-37 in) in wingspan. They have a black hood, red bill and legs, white eye crescents, dark grey back, and white underparts which sometimes show a rosy pink cast. Their dark grey wings have black tips with white spots at the very tips of the primaries and a white band at the trailing edge. They feed on worms and insects, small fish, crabs, and small amounts of vegetation. When foraging in water, they sometimes swim in circles to create a vortex to bring prey closer to the surface.
lava gull image by Andy Morffew
Franklin's gull image by Terry Sohl