450 TINAMID.#. 
themselves by hiding their heads amongst the bushes. The English mahogany-cutters 
called them the ‘‘ Ground-Partridge.” 
The eggs are spheroidal in shape and of a glossy blue colour ®. 
2. Tinamus fuscipennis. 
Tinamus robustus (nec Scl.), Lawr. Ann. Lyc. N. Y. ix. p. 140°; v. Frantz. J. f. Orn. 1869, p. 3747 ; 
Zeledon, Cat. Av. Costa Rica, p. 29°; Pr. U. S. Nat. Mus. 1885, p.112*; Ann. Mus. Nac. 
Costa Rica, 1887, p. 128°; Salv. Ibis, 1874, p. 329°; Richm. Pr. U.S. Nat. Mus. xvi. 
p. 5257. . 
Tinamus fuscipennis, Salvad. Cat. Birds Brit. Mus. xxvii. p. 500°. 
Tinamus salvini, Underwood, Bull. B. O. C. vii. p. lix’; Ibis, 1898, p. 612”. 
7’. robusto similis, sed tectricibus primariorum remigibusque nigricantibus, extus brunneo lavatis: subtus 
olivascenti-cinereus, pectore medio arenario, minute fusco irrorato; abdomine tamen et hypochondriis 
imis arenario-rufis, magis distincte et latius fusco transfasciatis ; subcaudalibus pallide cinnamomeis vel 
arenario-rufis, extus brunneo fasciatim indentatis. Long. tota circa 16:0, alee 9°6, caude 2°8, culm. 1°45, 
tarsi 3°0. (Descr. femine adult typice ex San Rafael del Norte, Nicaragua. Mus. nostr.) 
Juv. (T. salvini) adulto similis, sed supra ochraceo minute punctatus, hypochondriis tibiisque latius fasciatis ; 
secundariis extus distincte rufo fasciatis. Long. tota 10°5, ale 7:2. (Descr. exempl. typ. 7. salvini ex 
Carrillo, Mus. nostr.) . 
Hab. Nicaragua, Rio Escondido (Richmond’®), San Rafael del Norte (Richardson §) ; 
Costa Rica (von Frantzius?, Zeledon 3+), San José, San Carlos (J. Carmiol +), Pozo 
Azul de Pirris (Zeledon*), Carrillo ® 1°, Jimenez, Miravalles (Underwood, in litt.) ; 
Panama, Veragua (Merritt °, Arcé §).—Kcvapor (Mus. Brit.). 
Count Salvadori has separated the large Tinamou of Nicaragua and Panama from 
the typical 7. robustus on account of its much darker, nearly black, primaries, primary- 
coverts, and bastard-wing. ‘The upper parts are also darker, the breast inclining to 
olive, and the abdomen is redder. 
The typical specimens of 7. fuscipennis, from which the above description is taken, 
are in our collection. ‘They have the darker quills not very strongly emphasized, 
and some examples of 7. robustus resemble them in this respect very closely. 
T. fuscipennis is, in fact, a slightly darker form of 7. robustus, and is scarcely to be 
separated specifically. The chest, too, in some Nicaraguan examples is rather darker 
and browner, and not so grey as in 7’ robustus, and the pale sandy colour reaches to the 
lower chest. Both the Nicaraguan and Veraguan birds have pale rufous under tail- 
coverts, with indentations of blackish-brown, so that they appear to be less regularly 
barred than in 7. robustus. ‘This is a feature, however, which varies considerably in 
Tinamous, and a much larger series than those at present at our disposal is necessary 
before we can estimate the value of all the sequences of plumage. There is considerable 
variation also in the extent of vermiculation on the under surface and in the barring of © 
the back, these markings becoming obsolete with age. The under tail-coverts, too, 
vary very much in pattern, doubtless from the same cause. 
