Common Tern (sexes similar) - approx. 38 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Sterna
Species: Hirundo
Updated August 3 2011
Common Tern (sexes similar) - approx. 38 cm - Leslie Spit - June 2011
Herring Gull (sexes similar) - approx. 61 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Argentatus
4 year Gull (4 years required to reach adult plumage) -
Similar to Thayer's Gull (L. thayeri) which was formerly
considered a sub-species of the Herring Gull
Similar to Thayer's Gull (L. thayeri) which was formerly
considered a sub-species of the Herring Gull
Herring Gull (sexes similar) - approx. 61 cm - Lower Don Valley (Crother's Woods) - May 2007
Ring-billed Gull (sexes similar) - approx. 48 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Delawarensis
3 year Gull (3 years required to reach adult plumage)
Updated April 1 2012
Ring-billed Gull (sexes similar) - approx. 48 cm - Lower Don Valley (Crother's Woods) - May 2007
Ring-billed Gull (1st Winter) - approx. 48 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Delawarensis
3 year Gull (3 years required to reach adult plumage)
Updated April 1 2012
Ring-billed Gull (1st Winter) - approx. 48 cm - Lynde Shores Conservation Area (Whitby) - September 2007
Gulls & Terns
Page Last Updated: April 1 2012
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More Common Terns
More Herring Gulls
More Ring-billed Gulls
More Ring-billed Gulls
Updated October 1 2011
Great Black-backed Gull (sexes similar - winter plumage) - approx. 75 cm - Marie Curtis Park - November 2008
Great Black-backed Gull (sexes similar - winter plumage)
- approx. 75 cm
- approx. 75 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Marinus
4 year Gull - largest North American Gull - winter adults
have slight brownish streaking on back of head
have slight brownish streaking on back of head
5 species
Common Terns with juveniles (sexes similar) - approx.
38 cm
38 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Sterna
Species: Hirundo
Common Terns with juveniles (sexes similar) - approx. 38 cm - Leslie Spit - June 2009
These nesting sites are man-made platforms in Lake
Ontario - long, narrow structures are used for the nests to
discourage predators
Ontario - long, narrow structures are used for the nests to
discourage predators
Updated August 3 2011
More Common Terns
Arctic Tern bill usually completely red - Caspian Tern larger
with stouter red bill
with stouter red bill
Iceland Gull (sexes similar - 1st or 2nd year) - approx. 61 cm - Bluffers Park - April 2010
Iceland Gull (sexes similar - 1st or 2nd year) - approx. 61 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Glaucoides
3 or 4 year Gull - Canadian breeding subspecies
(Kumlien's) breeds in Northern Quebec and on Baffin
Island - rare winter visitor to Toronto
(Kumlien's) breeds in Northern Quebec and on Baffin
Island - rare winter visitor to Toronto
Updated April 19 2010
More Iceland Gulls
Updated February 13 2011
More Great Black-backed Gulls
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
Audio - updated March 27 2009
Audio - updated January 19 2010
Herring Gull (2nd winter?) - wingspan approx. 1.4 m
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Argentatus
More Herring Gulls
Updated October 1 2011
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)
4 year Gull (4 years required to reach adult plumage) -
Similar to Thayer's Gull (L. thayeri) which was formerly
considered a sub-species of the Herring Gull
Similar to Thayer's Gull (L. thayeri) which was formerly
considered a sub-species of the Herring Gull
Herring Gull (2nd winter?) - wingspan approx. 1.4 m - Leslie Spit - September 2011
Ring-billed Gull (1st Winter) - approx. 48 cm
Order: Charadriiformes (Shorebirds)
Family: Laridae (Gulls, Terns & Relatives)
Genus: Larus
Species: Delawarensis
3 year Gull (3 years required to reach adult plumage)
Updated April 1 2012
Ring-billed Gull (1st Winter) - approx. 48 cm - Bluffers Park - November 2011
More Ring-billed Gulls
Kingdom: Animalia
Phylum: Chordata (Vertebrates)
Class: Aves (Birds)