GALLERIES > BIRDS > CHARADRIIFORMES > LARIDAE > BONAPARTE'S GULL [Chroicocephalus philadelphia]
Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: April 28, 2008 ID : 9345 [3888 x 2592]
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Location: Tybee Island, GAGPS: 32.0N, -80.8W, elev=9' MAP Date: February 9, 2008 ID : 3400 [3888 x 2592]
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Location: Malibu Lagoon, CAGPS: 34.0N, -118.7W, elev=8' MAP Date: February 21, 2012 ID : B13K4290 [4896 x 3264]
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Location: Salt Creek, Salton Sea, CAGPS: 33.4N, -115.8W, elev=-225' MAP Date: April 6, 2016 ID : B13K1367 [4896 x 3264]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: April 2, 2016 ID : B13K1245 [4896 x 3264]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: April 2, 2016 ID : B13K1217 [4896 x 3264]
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Location: Malibu Lagoon, CAGPS: 34.0N, -118.7W, elev=8' MAP Date: February 21, 2012 ID : B13K4230 [4896 x 3264]
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Location: Malibu Lagoon, CAGPS: 34.0N, -118.7W, elev=8' MAPDate: February 21, 2012
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Location: Malibu Lagoon, CAGPS: 34.0N, -118.7W, elev=8' MAP Date: February 21, 2012 ID : B13K4256 [4896 x 3264]
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Location: Malibu Lagoon, CAGPS: 34.0N, -118.7W, elev=8' MAP Date: February 21, 2012 ID : B13K4273 [4896 x 3264]
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Location: Salton Sea - Unit 1, CAGPS: 33.1N, -115.7W, elev=-212' MAP Date: November 28, 2010 ID : B13K5005 [4896 x 3264]
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Location: Tijuana (Coronado Islands), MexicoGPS: 32.4N, -117.2W, elev=0' MAP Date: March 15, 2008 ID : 6222 [3888 x 2592]
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Location: Cleveland (E 72nd St), OHGPS: 41.5N, -81.6W, elev=580' MAP Date: January 11, 2009 ID : 7C2V3314 [3888 x 2592]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: April 23, 2008 ID : 8869 [3888 x 2592]
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Location: Malibu Lagoon, CAGPS: 34.0N, -118.7W, elev=8' MAP Date: April 8, 2008 ID : 8270 [3888 x 2592]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: March 18, 2008 ID : 6708 [3888 x 2592]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: March 18, 2008 ID : 6714 [3888 x 2592]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: March 18, 2008 ID : 6719 [3888 x 2592]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: March 18, 2008 ID : 6732 [3888 x 2592]
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Location: Playa del Rey (Ballona Creek), CAGPS: 34.0N, -118.4W, elev=0' MAP Date: March 18, 2008 ID : 6741 [3888 x 2592]
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SPECIES INFO
The Bonaparte's Gull, Chroicocephalus philadelphia, is a small gull.
Adults are 31-34 cm long with a 79-84 cm wingspan. They have a black hood and a short thin dark bill. The body is mainly white with pale grey back and upper wings. The underwing is pale and the wing tips are dark. They have orange legs. In winter, the head is white.
In their first summer, the appearance of Bonaparte's Gull is similar to that in its first winter, but paler due to wear. Fewer than 5% of Bonaparte's Gulls acquire a dark hood in their first summer, and on those that do, the hood is duller than on breeding adults.
Their breeding habitat is near bogs or lakes in coniferous forest across western Canada and Alaska. They nest in conifers, sometimes on the ground.
They are migratory and most move east or west to coastal waters, also the Great Lakes. They are rare vagrants to western Europe, where they usually associate with the somewhat larger Black-headed Gulls.
These birds forage in flight or pick up objects while swimming or wading. They mainly eat insects, crustaceans and fish. Unlike some other gulls, this bird rarely scavenges.
It is graceful in flight, more like a tern. It was named after Prince Charles Lucien Bonaparte, a zoologist and nephew of Napoleon.
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