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Snapshot
Primary Traits
367.8 g
0 m
49
—
Record section
Identity and Taxonomy
Scientific identity, taxonomic placement, and source lineage.
Scientific name
Thalasseus bergii
English name
Greater Crested Tern
Order
Charadriiformes
Family
Laridae
Genus
Thalasseus
Species
bergii
Data source
HBW3, BOTW, D07,D23
Record section
Conservation and Range
Threat status and geographic distribution signals.
Conservation status
Least Concern
Range restricted
No
Island endemic
No
Biogeographic realm
Eastern Hemisphere
Latitudinal zone
Tropical-Temperate
Record section
Measurements
Mass and elevation values from the stored record.
Minimum female mass
386 g
Maximum female mass
No data
Minimum male mass
416 g
Maximum male mass
No data
Minimum unsexed mass
269 g
Maximum unsexed mass
400 g
Average mass
367.8 g
Minimum elevation
No data
Typical lower elevation
0 m
Typical upper elevation
0 m
Maximum elevation
No data
Elevation range
0 m
Typical elevation
0 m
Record section
Ecology
Habitat, diet, and specialization profile.
Primary habitat
Coastal
Habitat breadth
4
Primary diet
Fish
Diet breadth
2
Diet specialization index
1.1
Record section
Behavior and Reproduction
Breeding, nesting, incubation, and social traits.
Social behavior
Colonial
Mating system
No data
Cooperative breeding
No data
Nest type
Scrape
Nest substrate
Rock
Minimum broods per year
No data
Maximum broods per year
No data
Minimum clutch size
1
Maximum clutch size
3
Incubating sex
No data
Minimum incubation period
25 d
Maximum incubation period
30 d
Minimum fledging period
38 d
Maximum fledging period
40 d
Nest parasitism
No data
Average clutch size
2
Average fledging period
39 d
Record section
Mobility and Flight
Flight ability and movement pattern.
Flight status
Flies
Mobility patterns
Partial Migrant, Irregular/Nomadic, Sedentary