506 
Mr. O. Salvin on Birds 
The ornithology of Peru has been recently examined 
with great care, and the results given in M. Taczanowski’s 
f Ornithologie du Perou/ We thus find 307 of our Guiana 
birds also mentioned as inhabitants of Peru, and of these 44 
are also found in North America. This leaves 263 of more or 
less restricted range, or about 46 \ per cent, of the Guiana 
total less the widely ranging species and migrants. This 
number is largely due to the fact that the Peruvian list 
contains a great number of birds belonging strictly to the 
Amazons valley. 
There seems to be no species peculiar to Peru and Guiana 
to the exclusion of the Amazons valley or the Andes of 
Ecuador or Colombia. But some of the endemic Guiana 
species find their near relations in these Andean countries. 
Taking Colombia, Ecuador, and Peru together, with a view 
to ascertaining what relation there exists between Guiana 
and their more mountainous parts, we find that the following 
species are found in both countries, to the exclusion of the 
lower parts of the Amazons valley:— Setophaga verticalis, 
Calliste nigricincta , Pyranga ardens, Zonotrichia pileata, Och- 
thceca setophagoides, Contopus ardesiacus, Colombo, albilineata. 
And the following genera are represented in both districts 
by allied species :— Tardus, Basileuterus , Diglossa , Chloro- 
phonia, Buarremon, Catamenia , Piprites, Pipreola , Heliodooca, 
Petasophora, the species of neither country being found in 
the intermediate lowlands. 
6. Bolivia. 
Total number of Guiana birds found in 
Bolivia.102 
Less migrants.. 2 
sea-birds ......... 0 
— 2 
100 
or about 17 per cent, of the 589 Guiana birds. 
Of the endemic Guiana species it is worthy of note that 
Basileuterus roraima, B. mesoleucus, Setophaga castaneo - 
