Bonaparte's Gull (Chroicocephalus philadelphia)
Illustration redrawn by AI from a real photograph

Bonaparte's Gull

Chroicocephalus philadelphia (Ord, 1815)

211 gWeight

Bonaparte's gull (Chroicocephalus philadelphia) is a gull found mainly in northern North America.

Busiest months: May · Most records: United States, Canada, Mexico

Where and when it's recorded

Busiest months: May · Most records: United States, Canada, Mexico

Bonaparte's Gull has been recorded at 765 of the 8,276 birding hotspots we track, in 33 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Point Pelee National ParkCanada12,818 records
  2. Tawas Point SPUnited States5,867 records
  3. Point No PointUnited States5,535 records
More places
  1. Point Pelee NP – TipCanada5,033 records
  2. Pt. Pinos – seawatch onlyUnited States4,900 records
  3. Hillman Marsh CACanada4,386 records
  4. Pte. Mouillee SGAUnited States3,890 records
  5. Long Point – TipCanada3,545 records
  6. Huntington Beach SPUnited States3,349 records
  7. Rondeau Provincial ParkCanada3,259 records

Countries and regions with the most records

United StatesCanadaMexicoUnited KingdomSpainBermudaPortugalBahamas

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

Bonaparte's gull (Chroicocephalus philadelphia) is a gull found mainly in northern North America. At 28 to 38 cm (11 to 15 in) in length, it is one of the smallest species of gull. Its plumage is mainly white with grey upperparts.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Bonaparte's Gull?

The Bonaparte's Gull weighs around 211 g.

Where does the Bonaparte's Gull live?

Its breeding range: North America: boreal forest zone from southwestern Alaska mainland and northwestern, southwestern Canada to eastern Quebec (southeastern Canada). It is most often recorded in United States, Canada and Mexico.

When is the best time to see the Bonaparte's Gull?

At the hotspots we track, it is recorded most in May (Northern Hemisphere).

What does the Bonaparte's Gull eat?

Main food: Omnivore.

What family is the Bonaparte's Gull in?

It belongs to the family Gulls, Terns, Skimmers (Laridae), order Charadriiformes.

At a glance

Weight
211 g
Habitat
Wetland
Diet
Omnivore
Lifestyle
Feeds in the air
Migration
Partial migrant
More measurements
Wing
259 mm
Tail
96 mm
Bill
35 mm
Tarsus
32 mm

Averages from the AVONET dataset; length from field guides where available.

Range

North America: boreal forest zone from southwestern Alaska mainland and northwestern, southwestern Canada to eastern Quebec (southeastern Canada)

Breeding range, IOC World Bird List 15.2

Classification

Genus
Chroicocephalus

Other birds in the genus Chroicocephalus

Bonaparte's Gull

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by Declan Troy. ↗

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