Habitat, Maldonado, La Plata, (June).
This bird, like the last species, generally moves in very small flocks. Its habits, I presume, are also very similar; for I state in my notes that it closely approaches to our tit-mice in general manners and appearance.
3. Serpophaga nigricans. Gould.
Sylvia nigricans, Vieill.
Tachuris nigricans, D’Orb. & Lafr. Mag. de Zool. 1837. p. 55.
Le Petit Tachuris noirâtre, Azara, No. 167.
This bird is common in the neighbourhood of Maldonado, on the banks of the Plata. It generally frequents the borders of lakes, ditches, and other moist places; but is related in its general manners with the last species. It often alights on aquatic plants, growing in the water. When seated on a twig it occasionally expands its tail like a fan.
Sub-Fam.—TITYRANÆ. (Psarianæ, Sw.)
Pachyramphus, G. R. Gray.
Pachyrhynchus, Spix.