Value: S Europe and Medit. basin to S Africa and Indian subcontinent
Source: Clements 2021
Value: Breeds locally in the Caspian Sea region, the Kirghiz Steppes, Trans- caspia, Transcaucasia, West Siberia (Turgai), about the Persian Gulf, Ceylon(?), northwestern India, Cape Verde Islands and South Africa. Formerly in southern Spain, southern France, Tunis and Lower Egypt.
Source: Peter's Checklist of the Birds of the World
Value: southern Europe and Mediterranean basin to southern Africa and Indian subcontinent
Source: Clements, version 2024
Value: southern Europe and Mediterranean basin to southern Africa, Madagascar, and southern Asia
Source: Avilist 2025
Maximum latitude of breeding range
Value: 51.09
Units: degrees
Source: Tobias et al. 2021
Minimum latitude of breeding range
Value: -34.84
Units: degrees
Source: Tobias et al. 2021
Value: -8.68
Units: degrees
Source: Tobias et al. 2021
Value: -8.67
Units: degrees
Source: Bird et al. 2020
Value: 28.91
Units: degrees
Source: Tobias et al. 2021
Value: 1: Yes
Source: Sekercioglu et al. 2025
Nomadic, erratic, irruptive, wandering
Value: 1: Yes
Source: Sekercioglu et al. 2025
Breeding restricted to island(s)
Value: 0
Source: Sekercioglu et al. 2025
Value: Tropical-Temperate
Source: Sekercioglu et al. 2025
Value: 1: Yes
Source: Sekercioglu et al. 2025
Value: Partially migratory
Source: Tobias et al. 2021
Value: Full Migrant
Source: Bird et al. 2020
Value: 58100000
Units: km2
Source: Bird et al. 2020
Value: 5093092.47
Units: km2
Source: Tobias et al. 2021
Value: > 50000
Units: km2
Source: Sekercioglu et al. 2025
Value: Afrotropical, Palearctic, Indomalayan
Source: Sekercioglu et al. 2025
Value: Afrotropic
Source: Pigot et al. 2020
Sedentary, largely does not migrate
Value: 1: Yes
Source: Sekercioglu et al. 2025
Range and population size
Value: N
Source: Birdlife's Worldbird Database
Value:
Range: 0 - 0
Units: m
Source: Bird et al. 2020
Value:
Range: 0 - 3200
Units: m
Source: Sekercioglu et al. 2025
Value: 3200
Units: m
Source: Sekercioglu et al. 2025
Number of major habitats used
Value: 3
Source: Sekercioglu et al. 2025
Value: Open habitats
Source: Tobias et al. 2021
Value: Water
Source: agric.ncape.gov.za
Value: Wetland
Source: Tobias et al. 2021
Value: Freshwater
Source: Bird et al. 2020
Value: Marine
Source: Bird et al. 2020
Value: Terrestrial
Source: Bird et al. 2020
Value: DIURNAL
Source: Bird et al. 2020
Value: W: Wetlands, lakes, salt lakes, marsh, reedbed
Units: rank
Source: Sekercioglu et al. 2025
Value: C: Sea coast, mangrove, estuary, bays, shores, fjords (only sea coast), coastal dune
Units: rank
Source: Sekercioglu et al. 2025
Value: A: Artificial, agricultural, farms, plantations, suburban, quarry, mine, excavation, dams and man-made lakes
Units: rank
Source: Sekercioglu et al. 2025
Number of major food types consumed
Value: 3
Source: Sekercioglu et al. 2025
Source used for diet data
Value: 1
Source: Sekercioglu et al. 2025
Value: Invertebrate
Source: Sekercioglu et al. 2025
Value: Omnivore
Source: Bird et al. 2020
Ecological Specialization Index
Value: 1.04576
Source: Sekercioglu et al. 2025
Value: Aquatic ground
Source: Pigot et al. 2020
Value: Carnivore
Source: Pigot et al. 2020
Value: Carnivore
Source: Tobias et al. 2021
Value: Aquatic predator
Source: Pigot et al. 2020
Value: Aquatic predator
Source: Tobias et al. 2021
Value: 0
Source: Sekercioglu et al. 2025
Value: 0
Source: Sekercioglu et al. 2025
Weight of invertebrates in diet
Value: 8
Source: Sekercioglu et al. 2025
Weight of land vertebrates in diet
Value: 0
Source: Sekercioglu et al. 2025
Weight of miscellaneous in diet
Value: 0
Source: Sekercioglu et al. 2025
Value: 0
Source: Sekercioglu et al. 2025
Weight of plant material in diet
Value: 1
Source: Sekercioglu et al. 2025
Weight of scavenging in diet
Value: 0
Source: Sekercioglu et al. 2025
Value: 1
Source: Sekercioglu et al. 2025
Sum of the weighted diets
Value: 10
Source: Sekercioglu et al. 2025
Value: 3.65
Range: 3.49 - 3.9
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 3.99767
Range: 3.873 - 4.12
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 3.80811
Range: 3.49 - 4.12
Units: cm
Sample: 9
Source: Tobias et al. 2021
Bill length (females) - Culmen
Value: 12.1867
Range: 11.64 - 12.47
Units: cm
Sample: 3
Source: Tobias et al. 2021
Bill length (males) - Culmen
Value: 13.064
Range: 12.86 - 13.17
Units: cm
Sample: 3
Source: Tobias et al. 2021
Bill length (females) - Nares to tip
Value: 8.68667
Range: 8.3 - 8.91
Units: cm
Sample: 3
Source: Tobias et al. 2021
Bill length (males) - Nares to tip
Value: 8.83
Range: 8.8 - 8.86
Units: cm
Sample: 2
Source: Tobias et al. 2021
Bill length (sex unknown) - Nares to tip
Value: 8.64
Range: 8.07 - 8.91
Units: cm
Sample: 8
Source: Tobias et al. 2021
Bill length (sex unknown) - Culmen
Value: 12.4658
Range: 11.64 - 13.17
Units: cm
Sample: 9
Source: Tobias et al. 2021
Value: 2.72333
Range: 2.6 - 2.95
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 2.62967
Range: 2.53 - 2.759
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 2.59878
Range: 2.38 - 2.95
Units: cm
Sample: 9
Source: Tobias et al. 2021
Value: 3043.5
Range: 2500 - 3570
Units: g
Source: Myhrvold et al. 2015
Value: 3031.59
Units: g
Source: Tobias et al. 2021
Value: 3031.59
Units: grams
Source: Bird et al. 2020
Value: 2953.66
Units: g
Source: Sekercioglu et al. 2025
Value:
Range: 2064.64 - 3300
Units: g
Source: Sekercioglu et al. 2025
Value: 2530
Range: 2525 - 2665
Units: g
Source: Myhrvold et al. 2015
Value: 85
Range: 85 - 85
Units: g
Source: Myhrvold et al. 2015
Value: 3574.5
Range: 3516.5 - 3579
Units: g
Source: Myhrvold et al. 2015
Value:
Range: 2000 - 4450
Units: g
Source: Sekercioglu et al. 2025
Value: 3052
Range: 3052 - 3052
Units: g
Source: Myhrvold et al. 2015
Value: 12.3333
Range: 11 - 13.6
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 15.3667
Range: 13.2 - 18.9
Units: cm
Sample: 3
Source: Tobias et al. 2021
Tail length (sex unknown)
Value: 13.8444
Range: 11 - 18.9
Units: cm
Sample: 9
Source: Tobias et al. 2021
Value: 27.4
Range: 25 - 28.8
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 32.95
Range: 31.7 - 34.2
Units: cm
Sample: 2
Source: Tobias et al. 2021
Tarsus length (sex unknown)
Value: 29.45
Range: 25 - 34.2
Units: cm
Sample: 8
Source: Tobias et al. 2021
Value: 37.7333
Range: 37 - 38.5
Units: cm
Sample: 3
Source: Tobias et al. 2021
Hand-Wing Index (females)
Value: 207.333
Range: 195 - 229
Units: %
Sample: 3
Source: Tobias et al. 2021
Value: 220.5
Range: 214 - 227
Units: %
Sample: 2
Source: Tobias et al. 2021
Hand-Wing Index (unknown)
Value: 230.3
Range: 195 - 288
Units: %
Sample: 8
Source: Tobias et al. 2021
Value: 17
Range: 14.8 - 19
Units: cm
Sample: 3
Source: Tobias et al. 2021
Value: 19.9
Range: 19.2 - 20.6
Units: cm
Sample: 2
Source: Tobias et al. 2021
Value: 16.395
Range: 13.27 - 20.6
Units: cm
Sample: 8
Source: Tobias et al. 2021
Value: 42.5333
Range: 41.9 - 43.7
Units: cm
Sample: 3
Source: Tobias et al. 2021
Wing length (females) - secondary1
Value: 20.7333
Range: 19.5 - 22.9
Units: cm
Sample: 3
Source: Tobias et al. 2021
Wing length (males) - secondary1
Value: 22.05
Range: 21.4 - 22.7
Units: cm
Sample: 2
Source: Tobias et al. 2021
Wing length (unknown) - secondary1
Value: 23.03
Range: 19.5 - 28.8
Units: cm
Sample: 8
Source: Tobias et al. 2021
Wing length (sex unknown)
Value: 39.9
Range: 37 - 43.7
Units: cm
Sample: 9
Source: Tobias et al. 2021
Description of physical nest (shape, etc.)
Value: cup, bowl; half cup, shallow
Source: Sekercioglu et al. 2025
Value: 142
Range: 142 - 142.7
Units: g
Source: Myhrvold et al. 2015
Value: 3.452132746
Units: years
Source: Bird et al. 2020
Value: 5
Units: years
Source: Bird et al. 2020
Age at first breeding (females)
Value: 5
Range: 2.5 - 5
Units: years
Source: Myhrvold et al. 2015
Age at first breeding (males)
Value: 5
Range: 5 - 5
Units: years
Source: Myhrvold et al. 2015
Value: 1
Range: 1 - 1
Units: n
Source: Myhrvold et al. 2015
Value: 1
Units: n
Source: Bird et al. 2020
Value:
Range: 1 - 3
Source: Sekercioglu et al. 2025
Value: 1: Yes
Source: Sekercioglu et al. 2025
Value: 1: Yes
Source: Sekercioglu et al. 2025
Value:
Range: 71 - 98
Source: Sekercioglu et al. 2025
Value: 72.5
Range: 72.5 - 72.5
Units: days
Source: Myhrvold et al. 2015
Number of breeding attempts per year
Value: 1.5
Range: 1.5 - 1.5
Units: n/year
Source: Myhrvold et al. 2015
Value:
Range: 1 -
Source: Sekercioglu et al. 2025
Sex of bird sitting on eggs/nest
Value: Both
Source: Sekercioglu et al. 2025
Value:
Range: 27 - 31
Source: Sekercioglu et al. 2025
Value: 30
Range: 29.5 - 30
Units: days
Source: Myhrvold et al. 2015
Value: 0: No
Source: Sekercioglu et al. 2025
Value: 1: Yes
Source: Sekercioglu et al. 2025
How nests are connected to supporting objects
Value: Basal
Source: Chia et al. 2023
Location where nests are constructed
Value: Ground
Source: Chia et al. 2023
Value: Ground
Source: Sekercioglu et al. 2025
Nest has an 'artificial' location
Value: no
Source: Sheard et al. 2024
Nest has an 'earth hole' location
Value: no
Source: Sheard et al. 2024
Nest has a 'ground' location
Value: yes
Source: Sheard et al. 2024
Nest has a 'rock' location
Value: no
Source: Sheard et al. 2024
Nest has a 'tree hole' location
Value: no
Source: Sheard et al. 2024
Nest has a 'vegetation' location
Value: no
Source: Sheard et al. 2024
Nest has a 'water' location
Value: no
Source: Sheard et al. 2024
Value: Platform
Source: Chia et al. 2023
Nest has a 'cavity' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'clearing' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'cup' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'dome' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'dome-and-tube' structure
Value: no
Source: Sheard et al. 2024
Nest has an 'excavation' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'excavation-with-nest' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'mound' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'none' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'platform' structure
Value: yes
Source: Sheard et al. 2024
Nest has a 'ring' structure
Value: no
Source: Sheard et al. 2024
Nest has a 'scrape' structure
Value: no
Source: Sheard et al. 2024
Value: False
Source: Chia et al. 2023
Value: 0: No
Source: Sekercioglu et al. 2025
Adult annual survival rate
Value: 0.923761205
Units: annual rate
Source: Bird et al. 2020
Average generation length (years)
Value: 14.79
Units: years
Source: Birdlife 2024
Value: 15.60347424
Range: 14.65721599 - 17.11668161
Units: years
Source: Bird et al. 2020
Value: 34.0522429
Units: years
Source: Bird et al. 2020
Value: 83
Range: 13.16666667 - 83
Units: years
Source: Myhrvold et al. 2015
Value: 38.5
Units: years
Source: Bird et al. 2020
Value: 38.5
Units: years
Source: Myhrvold et al. 2015
Population decline over 10 years
Value: 0%
Range: 0% - 0%
Units: percent
Source: Bird et al. 2020
Population decline over 3 generation
Value: 0%
Range: 0% - 0%
Units: percent
Source: Bird et al. 2020
Value: 0: No
Source: Sekercioglu et al. 2025
Value: 0: No
Source: Sekercioglu et al. 2025
Value: 0: No
Source: Sekercioglu et al. 2025
Value: 0: No
Source: Sekercioglu et al. 2025
Value: No
Source: Sekercioglu et al. 2025