Recently published Ornithological Works. 173 
Parus atricristatus castaneifrons and P. bicolor texensis. 
Dr. Allen discusses the true status of these birds at full 
length, and, after a careful study of all available material, 
accepts Mr. Ridgway's view that “ the birds shewing mixed 
characters are hybrids ” and notgeographical intergrades.^ 
A somewhat similar case in the Oriental Region is that of 
Coracias indicus and C. affinis (see Blanford, Fauna of 
Brit. Ind., Birds, iii. p. 106). 
2. Berlepsch on the Birds of Cayenne. 
[On the Birds of Cayenne.—Part II. By Hans, Graf v. Berlepsch. 
Nov. Zool. xv. p. 201.] 
We have now before us the second part of Graf von 
Berlepsch’s excellent memoir on the Birds of Cayenne, of 
which we have already noticed the first ( f Ibis/ 1908, p. 616). 
In the two parts together 626 species are included. In the 
second part the author begins with the Trochilidse, of which 
he enumerates 38 species as found in Cayenne. 
Additions and corrections follow the List, and it is stated 
in a “ Summary ” that we may add about 140 more species 
which, although not yet recorded from Cayenne, are likely 
to be found there. We are therefore “ justified in comput¬ 
ing the number of species that belong to that country to be 
about 766.” 
“ Penelope granti ” is proposed as a new name for the 
species of Guan from British Guiana called P. marail 
by Mr. Ogilvie-Grant (Cat. B. xxii. p. 495), the P. marail 
of Gmelin being probably = P. jacupeba. 
3. Cheeseman on the Lesser Frigate-bird. 
[Notice of the Occurrence of the Lesser Frigate-bird (Fregata ariel ) in 
North Auckland District. By F. F. Cheeseman. Trans. New Zealand 
Inst. xl. p. 265 (1897).] 
In BullePs 6( Supplement ” to his f Birds of New 
Zealand ’ it is stated that there is only one authentic record 
of the occurrence of Fregata ariel in New Zealand. The 
capture of a second specimen of this bird in the peninsula 
north of Auckland and various particulars about it are now 
