1/6 BROOKLYN' INSTITUTE -ML'SEUil. SCIENCE BULLETIN 2. 6. 
oak. One of the eggs was broken in removing the embryo. The 
single specimen preserved is ovate in form and measures 22.5 x 16.75 
mm. The ground color of this egg is uniform with the two last 
described, but the general color of the egg surface is considerably 
lighter owing to the sharp outlines of the small spots, which are 
thickly scattered over the entire surface, especially about the larger 
end. and which vary in color irom drab to clove brown. 
A fourth set of two fresh eggs, taken May 21, 1907, on the Sati 
Feliz River near its junction with the Cuchivero River, are so heavily 
marked as to almost completely hide the dirty white ground. In 
one of the eggs the markings of brown, from a bistre to a vandyke. 
blend into and overlap one another over the entire surface of the egg. 
The other egg differs only in having a few superimposed dots, spots 
and blotches of dark clove brown scattered irregularly over the egg 
surface. These eggs are ovate in form and measure 22.23 ^ ^7--5 
and 22.25x17.5 mm. In the same tree with the nest from which 
these eggs were taken, and not 2 ni. from it. was an occupied nest of 
Ty ran II us inclancholicus. 
From my observations and the material secured we may conclude 
that normally this species lays two eggs, and that the nesting season 
lasts from April to June in the middle Orinoco region. Nests are placed 
from 1.5 to 6 m. from the ground, favorite nesting sites being in the 
guamal or scrub oaks that sparsely dot much of the savanna country, 
and frequently in trees occupied by nests of other birds. 
This form of the Blue Tanager is found throughout the delta 
region along the middle Orinoco and up beyond the falls of Atures 
and Maipures, where it is found in company with and is gradually 
replaced by T. cf^iscofiis cpiscof^us. 
The American Museum has specimens from Maripa, on the 
Caura River, collected in February, April, May and December, and 
from Ciudad Bolivar on the Orinoco collected in June, July and 
December. One of the December birds from Ciudad Bolivar, in the 
paleness of the blue shoulder patch, approaches T. cpiscopus cpiscopus. 
There is a wide \'ariation in the intensity of the coloring of the blue 
shoulder patch which is due largely, if not entirely, to age. However, 
the same might be said regarding the general coloring. 
Birds in juvcnal plumage are greenish grey, heavily washed on the 
back with sage green, below much paler and only faintly washed with 
a slightly yellowish green. Median and lesser coverts like the back; 
