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Snapshot
Primary Traits
681.3 g
0 m - 3,000 m
49
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Record section
Identity and Taxonomy
Scientific identity, taxonomic placement, and source lineage.
Scientific name
Circus aeruginosus
English name
Western Marsh-harrier
Order
Accipitriformes
Family
Accipitridae
Genus
Circus
Species
aeruginosus
Data source
HBW2, BOTW, D07
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
540 g
Maximum female mass
1,030 g
Minimum male mass
405 g
Maximum male mass
750 g
Minimum unsexed mass
No data
Maximum unsexed mass
No data
Average mass
681.3 g
Minimum elevation
No data
Typical lower elevation
0 m
Typical upper elevation
3,000 m
Maximum elevation
No data
Elevation range
3,000 m
Typical elevation
1,500 m
Record section
Ecology
Habitat, diet, and specialization profile.
Primary habitat
Wetland
Habitat breadth
4
Primary diet
Vertebrate
Diet breadth
5
Diet specialization index
0.7
Record section
Behavior and Reproduction
Breeding, nesting, incubation, and social traits.
Social behavior
Colonial, Social, Solitary
Mating system
Monogamous, Polygynous
Cooperative breeding
No data
Nest type
Scrape
Nest substrate
Water
Minimum broods per year
1
Maximum broods per year
1
Minimum clutch size
2
Maximum clutch size
7
Incubating sex
Female
Minimum incubation period
31 d
Maximum incubation period
38 d
Minimum fledging period
35 d
Maximum fledging period
40 d
Nest parasitism
No data
Average clutch size
4.5
Average fledging period
37.5 d
Record section
Mobility and Flight
Flight ability and movement pattern.
Flight status
Flies
Mobility patterns
Migratory, Sedentary