Buteo lineatus

Red-shouldered Hawk (Gavilán de Hombros Rojos)

Distribution. — Asphalt deposits in west Cuba (see Appendix). Matanzas. Martí: MLB (San Felipe II, Suárez & Olson 2003 b: 71, Suárez 2020 a: 27). For fossil localities in the Bahamas (as ‘ Buteo quadratus ’), see Steadman & Franklin (2020). For current continental distribution, see Dykstra et al. (2020). Direct 14 C dating. — None in Cuba. For dating of other bird species at MLB, see Antigone cubensis, Gymnogyps varonai and Ornimegalonyx oteroi, and of associated extinct mammals (Parocnus browni = 11,880 ± 420 to 4,960 ± 280 years 14 C BP), see Jull et al. (2004) and Steadman et al. (2005). Notes. — Very rare in Cuba (Suárez & Olson 2003 b, Suárez 2020 a). Orihuela (2019: 60) indicated that ‘ Cuban remains [of Buteo lineatus] were described as “ more consistently robust ” than the comparative material of the Grey Hawk (Buteo nitidus) ’, but the reverse is true (Suárez & Olson 2003 b: 71). Also recorded from Quaternary deposits in the Bahamas (Olson 2000; see Olson & Hilgartner 1982, Steadman & Franklin 2020), where it was originally described (Wetmore 1937) as Calohierax quadratus Wetmore. The latter species is considered valid under Buteo by some authors (see Oswald & Steadman 2018, Steadman & Franklin 2020).

Referred material. — Femur: proximal end of right, MNHNCu 75.4614 (fig. 1 A, right [anterior]). Tibiotarsus: distal halves of right, MNHNCu 75.4615 (fig. 1 B, right [anterior]), and left, MNHNCu 75.4616; distal end of left, MNHNCu 75.4617. Tarsometatarsus: distal halves of right, MNHNCu 75.4618 (fig. 1 C, right [anterior]), and left, MNHNCu 75.4619. Cited material and figures are from Suárez & Olson (2003 b). Specimens collected in San Felipe II during 25 – 28 November 1998 (not ‘ 1988 ’ as stated [lapsus calami] in Suárez & Olson 2003 b: 71) by members of Depto. de Geología y Paleontología, MNHNCu. Catalogue numbers for this material in Suárez (2020 a: 27) are incorrect.