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| − | + | [[Image:Double-striped Thick-Knee Burhinus bistriatus 3.jpg|thumb|400px|right|Photo © by {{user|Steve+G|Steve G}}<br />Palo Verde, Guanacaste, [[Costa Rica]], July 2008]] | |
| − | [[Image:Double- | + | ;[[:Category:Hesperoburhinus|Hesperoburhinus]] bistriatus |
| + | ''Burhinus bistriatus'' | ||
==Identification== | ==Identification== | ||
| + | [[Image:Dabs - Double-striped Thick - knee 2.JPG|thumb|350px|right|Subspecies ''vocifer''<br />Photo © by {{user|DABS|DABS}}<br />Port of Spain, [[Trinidad]], July 2018]] | ||
| + | 43–48 cm (17-19 in) | ||
| + | *Grey brown above with fine streaks | ||
| + | *Pale brown neck | ||
| + | *White belly | ||
| + | *White [[Topography#Heads|supercilium]] with black stripe above | ||
| + | *Yellow iris | ||
| + | *Black and yellow bill | ||
| + | *Long green-grey legs | ||
| + | '''Juvenile''' | ||
| + | *Dark brown above | ||
| + | *White nape | ||
==Distribution== | ==Distribution== | ||
| − | [[Hispaniola]]; arid southern [[Mexico]] to [[Guyana]] and northern [[Brazil]]. Recent breeding record in the [[Bahamas]] | + | [[Hispaniola]]; arid southern [[Mexico]] to [[Guyana]] and northern [[Brazil]]. Recent breeding record in the [[Bahamas]]. |
| + | Accidental vagrant to [[Texas]] (1 record). | ||
==Taxonomy== | ==Taxonomy== | ||
| − | ====Subspecies<sup>[[#References|1]]</sup> | + | ====Subspecies==== |
| − | *'' | + | There are 4 subspecies<sup>[[#References|1]]</sup>: |
| − | *'' | + | *''H. b. bistriatus'': |
| − | *'' | + | :*Arid southern [[Mexico]] to north-western [[Costa Rica]] |
| − | *'' | + | *''H. b. dominicensis'' |
| + | :*[[Hispaniola]] | ||
| + | *''H. b. pediacus'' | ||
| + | :*Savanna and pastures of northern [[Colombia]] | ||
| + | *''H. b. vocifer'': | ||
| + | :*[[Venezuela]] to [[Guyana]] and extreme northern [[Brazil]] | ||
==Habitat== | ==Habitat== | ||
| + | Bushy savanna and open grassland, mostly dry areas. | ||
==Behaviour== | ==Behaviour== | ||
| + | Nocturnal and crepuscular. | ||
| + | ====Diet==== | ||
| + | Their diet is not well documented, but they are known to eat insects, worms and molluscs with the addition of lizards and small rodents on occasion too. | ||
| + | ====Breeding==== | ||
| + | They nest in a bare scrape usually some distance from nearest cover. The clutch consists of 2 olive-brown eggs which are incubated by both parents for 25-27 days. | ||
| + | |||
| + | The incubating bird seems to have a shorter flight distance in the middle of the day compared to early or late; presumably this is to protect the eggs from overheating which can be a danger during the very hot mid day. | ||
| + | ====Vocalisation==== | ||
| + | '''Song''': it sings at night; ''kee-kee-kee''. | ||
==References== | ==References== | ||
| − | # | + | #{{Ref-Clements6thOct23}}#Handbook of the Birds of the World Alive (retrieved July 2018) |
| + | #Pereira & Amat 2010. Nesting of the Double-striped Thick-knee in a hot environment. Ornithologia Neotropical 21(1):149-154 | ||
| + | #Wikipedia | ||
| + | {{ref}} | ||
==External Links== | ==External Links== | ||
| − | {{GSearch|Burhinus | + | {{GSearch|"Hesperoburhinus bistriatus" {{!}} "Burhinus bistriatus" {{!}} "Double-striped Thick-knee"}} |
| − | [[Category:Birds]][[Category: | + | {{GS-checked}}1 |
| + | <br /> | ||
| + | <br /> | ||
| + | |||
| + | [[Category:Birds]][[Category:Hesperoburhinus]] | ||
Latest revision as of 20:45, 26 December 2023
- Hesperoburhinus bistriatus
Burhinus bistriatus
Identification
43–48 cm (17-19 in)
- Grey brown above with fine streaks
- Pale brown neck
- White belly
- White supercilium with black stripe above
- Yellow iris
- Black and yellow bill
- Long green-grey legs
Juvenile
- Dark brown above
- White nape
Distribution
Hispaniola; arid southern Mexico to Guyana and northern Brazil. Recent breeding record in the Bahamas.
Accidental vagrant to Texas (1 record).
Taxonomy
Subspecies
There are 4 subspecies1:
- H. b. bistriatus:
- Arid southern Mexico to north-western Costa Rica
- H. b. dominicensis
- H. b. pediacus
- Savanna and pastures of northern Colombia
- H. b. vocifer:
Habitat
Bushy savanna and open grassland, mostly dry areas.
Behaviour
Nocturnal and crepuscular.
Diet
Their diet is not well documented, but they are known to eat insects, worms and molluscs with the addition of lizards and small rodents on occasion too.
Breeding
They nest in a bare scrape usually some distance from nearest cover. The clutch consists of 2 olive-brown eggs which are incubated by both parents for 25-27 days.
The incubating bird seems to have a shorter flight distance in the middle of the day compared to early or late; presumably this is to protect the eggs from overheating which can be a danger during the very hot mid day.
Vocalisation
Song: it sings at night; kee-kee-kee.
References
- Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
- Handbook of the Birds of the World Alive (retrieved July 2018)
- Pereira & Amat 2010. Nesting of the Double-striped Thick-knee in a hot environment. Ornithologia Neotropical 21(1):149-154
- Wikipedia
Recommended Citation
- BirdForum Opus contributors. (2024) Double-striped Thick-knee. In: BirdForum, the forum for wild birds and birding. Retrieved 27 May 2024 from https://www.birdforum.net/opus/Double-striped_Thick-knee
External Links
GSearch checked for 2020 platform.1
