AYES'. 
99 
CuCtJLID'^s 
Rowley, George Dawson. On certain Facts in the Economy of 
the Cuckoo [Cuculus canorus). Ibis, 1865, pp. 1 78-186, 
pp. 360, 361. 
This contains a notice of Or. Baldamus’s remarkable paper (Naiimannia , 
18*53, p. 307). The author considers that naturalist’s theory of a similarity 
existing between the e^gs of Cuculus canorus and those of the species into 
whose nests they are inti’oduced not to be proved. In some other respects 
his own coincides with the opinion of Dr. Baldamus. After a statement of the 
various birds which are recorded as having fostered Cuckoo’s offspring, Mr* 
Rowley adds to the canons” laid down by Dr. Baldamus three principles 
(1) , that the period of oviposition in England is between 5 May and 19 July 
(2) , that traces of a scuffle between the Cuckoo and , the owner of the nest 
often appear ; and (3) that it is not usual to find the full complement of eggs 
of the owner after the Cuckoo has introduced hers. 
ViAN, Jules. Canseries ornithologiques. Rev. et Mag. de Zool. 
1865, pp. 40-4.7, 74.-79, 129, 130; 
Some curious particulars relating to the economy of Cucuhis canorus are 
recorded, which we have already mentioned while noticing these papers imder 
the General Subject.” 
Cuculus mo7iosyllahicus is a new species from Formosa. R. Swinhoe, Ibis. 
1865, pp. 545, 546. 
Chalcitcs lucidus, Cuculus mornatus, and C. cincraceus of Australia ; many 
details of their habits, especially when breeding, given. E. P. Ramsay, P. Z. S. 
1865, pp. 460-465 ; Ann. & Mag. N. H. 3rd ser. xvi. pp. 290-295. 
Eudynamis taitensisj its eggs described. E. P. Ramsay, Ibis, 1865, p. 155. 
CAPRIMULGIDiE. 
Caprimulgus poliocephalus, Riipp. (Neue Wirbelth. p. 106 ; System. Debars. 
Vog. N.-O. Afrika’s, p. 15, tab. iv.), is said to be the only species found in 
Mosambique. G. G. Bianconi, Mem. Accad. Sci. Bologna, iv. p. 523. 
. Hydropsalis ypanemm and II, pallescens are undescribed species, discovered 
in Brazil by Natterer. The first generally resembles H. forcipata^ but is 
smaller and has the three middle pairs of rectrices differently marked ; the 
second is like H. torquata, but is larger and paler in colour. A. v. Pelzeln, 
Verhandl. zool.-bot. Gesellsch. Wien, 1865, pp. 985-988. 
Cypselid^. 
Sclater, P. L. Notes on the genera and species of CypselidtB. 
Proc. Zool. Soc. 1865, pp. 593-617, pis. xxxiii., xxxiv. 
The author’s opinion of the systematic position of the family 
agrees with that of L’Herminier, Nitzsch, and Burmeister. He 
proceeds to describe and figure the sternum in the genera Cyp- 
selus, ChcBtura, Collocalia, and Dendrochelidorij and then treats 
of the structure of the foot. Here he shows that Panyptila agrees 
with Cypselus in having the abnormal number of three phalanges 
in each digit, except the hallux, which has the ordinary two. 
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