222 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 



On our last expedition three nests and sets of eggs together with 

 the parent birds were collected. All were found in the neighborhood of 

 Caicara. The first taken June I5th contained two fresh eggs. One 

 is elongate ovate the other ovate in form. They measure 17.5x12 mm. 

 and 16 x 12.2 mm. respectively. In color they are white with a slight 

 creamy tinge, marked about the larger end with small dots and irregular 

 blotches cf brown, varying from a light hazel to a dark chestnut. 



The nest looks exactly like a handful of broad-leaved drift grasses 

 suspended from the tip of a 'slender drooping twig. The structure is 45 

 an. in length and 12 cm. in greatest diameter where the nest cavity 

 is situated. There is no extension built out over the entrance to the 

 nest cavity such as is seen in nearly all nests of T. cinereum, but only 

 the round entrance partially concealed by loose blades of dead grasses 

 hanging down over it. The grass blades forming the outer covering 

 on the upper half of the nest all hang straight down over the sides, 

 forming a perfect thatch. I imagine that the structure will shed water 

 perfectly. The nest cavity is shallow, hollowed only a little below the 

 entrance. There is a nest lining of fine soft grasses. This nest was 

 suspended barely 75.72 cm. above the ground. It was in the centre of a 

 thicket of undergrowth in the heavily forested belt of timber along the 

 river bank. 



The parent birds were exceedingly shy, and not until after an hour's 

 waiting was I able to make sure of the owner's identity and to collect 

 the male parent. 



The second nest was found June iQth. It contained only one egg 

 and that with incubation far advanced. This egg is ovate in form and 

 measures 17x12 mm. The ground color is similar to the two de- 

 scribed above, but the markings consist of tiny dots and some larger 

 spots of dark chestnut brown scattered over the entire surface of the 

 egg, but most thickly about the larger end. The nest was in the centre 

 of a thicket that bordered a pool of water in the thick forest. It was 

 suspended from the extreme tip of a slender twig, that bent out over 

 the water, and only about 91.5 cm. above its surface. 



The female parent was seen to fly from the nest, and was then col- 

 lected. 



The third and last nest collected was taken June 29th. It contained 

 two eggs in which incubation was far advanced. One egg is ovate; the 

 other is longer, nearly an elongate ovate. The two eggs measure 

 17.25 x 12.5 mm. and 18.5 x 12.5 mm. respectively. They are a little 



