BRITISH GUYANA BIRDS EGGS. 151 



young Courida trees {Avicennia nitida) along the margin of the 

 sea. The nest is built about six feet or so above the sur- 

 face of the mud, in which one, standing under the tree, 

 sinks to his waist. 



They lay three eggs. 



The egg — 43 mm. by 31 mm. — is light green. 

 They hatch in March and April. — One egg (N°. 10). 



16. Ibis (H a r p ip r i o n) cayennensis (Gin.). 

 Black Curri-curri. 



Their nest is made of sticks , and resembles the nest of 

 the herons, being flat and built on moderately high trees, 

 but, unlike the latter, they build up the creeks as a rule. 



They lay four eggs. 



The egg is bluish green , and varies in shape and size. 

 They average 43 mm. by 35 mm. They build in colonies 

 and hatch in April , May and June. — Two eggs (N°. 14). 



17. Ibis rubra, Vieill. 

 Curri-curri. 



They have also a flat nest , in colonies , of sticks , and 

 build on moderately high trees on the sea shore , generally 

 by themselves , but sometimes among the small herons. 



They lay two or three eggs. 



The egg is more uniform in shape and of a lighter green 

 than the egg of N°. 16, and averages 45 mm. by 33 mm. 



They hatch in April and May. — One egg (N°. 15). 



18. Tinamus major, J. E. Gray. 

 linamus subcristatus, Cab. (Schomburgk, Reise, III, p. 749). 

 Maam , Bush-fowl. 



The nest is a depression on the ground in which they 

 place a few dry leaves and bits of dry grass. 



They lay from six to eight eggs. 



The egg is smooth , regularly oval — 56 mm. by 46 

 mm. — , and of a greenish blue. 



Notes from the Leyden Museum, Vol. XI. 



