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Snapshot
Primary Traits
5.8 g
0 m - 1,200 m
48
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Record section
Identity and Taxonomy
Scientific identity, taxonomic placement, and source lineage.
Scientific name
Polioptila bilineata
English name
White-browed Gnatcatcher
Order
Passeriformes
Family
Polioptilidae
Genus
Polioptila
Species
bilineata
Data source
BOTW, D23
Record section
Conservation and Range
Threat status and geographic distribution signals.
Conservation status
No data
Range restricted
No data
Island endemic
No
Biogeographic realm
Neotropical
Latitudinal zone
Tropical
Record section
Measurements
Mass and elevation values from the stored record.
Minimum female mass
5 g
Maximum female mass
6 g
Minimum male mass
5 g
Maximum male mass
6 g
Minimum unsexed mass
5 g
Maximum unsexed mass
7 g
Average mass
5.8 g
Minimum elevation
No data
Typical lower elevation
0 m
Typical upper elevation
1,200 m
Maximum elevation
1,350 m
Elevation range
1,200 m
Typical elevation
600 m
Record section
Ecology
Habitat, diet, and specialization profile.
Primary habitat
Woodland
Habitat breadth
6
Primary diet
Invertebrate
Diet breadth
1
Diet specialization index
1.22
Record section
Behavior and Reproduction
Breeding, nesting, incubation, and social traits.
Social behavior
Singly and pairs
Mating system
Monogamous
Cooperative breeding
Solitary breeder
Nest type
Cup/Bowl
Nest substrate
Tree, Shrub/Bush/Vine
Minimum broods per year
1
Maximum broods per year
No data
Minimum clutch size
2
Maximum clutch size
4
Incubating sex
Both
Minimum incubation period
13 d
Maximum incubation period
14 d
Minimum fledging period
No data
Maximum fledging period
No data
Nest parasitism
No data
Average clutch size
3
Record section
Mobility and Flight
Flight ability and movement pattern.
Flight status
Flies
Mobility patterns
Sedentary