- Buteo nitidus
38–46 cm (15-18 in)
- Gray and white barred underparts
- Broadly white-banded black tail
Asturina vs. Buteo
Formerly placed in the monotypic genus Asturina. Riesing et al. (2003) presented genetic data indicating that Asturina is nested within Buteo. This reclassification is supported by virtually all authorities since then: Banks et al. (2006), AOU (2006 supplement), Clements (2007), SACC (2006). The Opus follows in this consensus.
There are 3 subspecies:
- B. n. blakei (formerly costaricensis):
- B. n. nitidus:
- B. n. pallidus:
Woodland and forest, but sometimes in more open habitats with scattered trees. Mainly in lowlands, but locally up to 1800 m (5900 ft). Generally fairly common, but rarer in its limited US range.
Feeds on a wide range of small animals, mostly reptiles, but also birds, rodents and insects.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Gill, F and D Donsker (Eds). 2012. IOC World Bird Names (version 3.2). Available at http://www.worldbirdnames.org/.
- Birdforum thread discussing the taxonomy of Gray Hawk
- Birdforum thread discussing AOU proposals including one to split Gray Hawk in two parts
- Paper describing the differences between Gray Hawk and Gray-lined Hawk
- BirdForum Opus contributors. (2021) Gray-lined Hawk. In: BirdForum, the forum for wild birds and birding. Retrieved 12 April 2021 from https://www.birdforum.net/wiki/Gray-lined_Hawk