SOCIETY FOR^ THE PROTECTION OF BIRJ>S. 
(No. 3.) 
OSPREY; 
OR, 
EGRETS AND AIGRETTES. 
BY 
W. H. HUDSON, C.M.Z.S., 
Author 0/ “ The Naturalist in La Plata” and, jointly with Dr. P. L. Sclater, 
P.P.S., of “Argentine Ornithology .” 
Any profits arising from the sale of this pamphlet will be devoted to 
the Society for the Protection of Birds. Copies at threepence 
each, or two shillings per dozen, postage free, can be obtained from the 
ladies whose addresses are given on the following page. 
