59 
Birds of Paraguay. 
December 3 of the same year. The eggs are deep coffee- 
brown in colour and measure: axis 1*55 to 1*8 inches; 
diameter 1*15 to 1*25. 
6. CoLUMBA SYLVESTRIS. 
Paloma de la mantes Azara, Apunt. iii. p. 11. no. cccxix. 
(1805). 
Columba sylvestris Vieill. N. Diet. d’Hist. Nat. xxvi. p. 366 
(1818, ex Azara) ; Hartl. Ind. Azara, p. 20 (1847) ; Salvad. 
Cat. B. Brit. Mus. xxi. p. 289, note (1893). 
Columba rufina (nec Temm.), Berlepsch, J. f. O. 1887, 
p. 124 (Paraguay) ; Salvad. Cat. B. Brit. Mus. xxi. p. 289 
(1892) ; Ihering, Be vista Mus. Paulista, vi. p. 341. 
Columba rufina sylvestris Hellmayr, Nov. Zool. xiii. p. 47 
(1906) ; id. op. cit. xv. p. 91 (1908 : Goyaz). 
a. $ imm. Sapucay, April 25, 1903. 
Bill black; tarsi and feet purplish red; iris red. 
This example differs from the adult bird chiefly in having 
the vinous colour of the head, neck, and upper breast much 
less pronounced. The British Museum has also a specimen 
of this species, in fully adult plumage, obtained at Villa 
Rica, Paraguay, in October 1906, and presented by the 
Hon. Wyndham Knatchbull-Hugessen. 
I refer specimens from Medellin and Bogota to C. rufina. 
All the forms are closely allied. The differences consist 
chiefly in the marking of the tail and the colour of the 
under tail-coverts. 
In the Paraguayan bird the grey tips to the tail-feathers 
are preceded by a very distinct shade of black, which 
brings out the tip of the feather in strong relief. 
This bird, which is C. sylvestris of Vieillot, is represented 
in the Museum from Brazil, Ytarare [Natterer) , Chapada, 
Matto-Grosso ( H . H. Smith), Pelotas, Rio Grande do Sul 
{Joyner), Island of Mexiana {A. R. Wallace), and Para 
(R. Graham ). It also extends to Peru, as there is a male, in 
the Salvin-Godman collection, from Guayabamba, obtained 
by O. T. Baron. The under tail-coverts in this form are 
entirely leaden grey. 
From this bird I propose to separate the following :— 
