THE GREAT CUTHBERT ROOKERY 71 



tripod, which now served me admirably, as rigidity of the 

 apparatus is the prime essential in telephoto work. 



All the nests of these water-birds are mere platforms of 

 sticks in a crotch, usually unlined with any soft material. 

 The ibises, however, line their nests with green mangrove 

 leaves, but, despite this, their nests are the flimsiest of them 

 all. Just a few sticks are laid across one another in the 

 crotch, some leaves are placed upon them, and the two or 

 three greenish eggs, beautifully mottled with brown, are then 



TELEPHOTO PICTURE OF AN IBIS AND A LOUISIANA HERON 



