Vol. XX I BoNHOTE, Migratio7i at so}ne Bahama Lighthouses. I DO 



BIRD MIGRATION AT SOME OF THE BAHAMA 

 LIGHTHOUSES. 



BY J. LEWIS BONHOTE, M. A., F. Z. S. L., M. B. O. U. 



The birds dealt with in this paper from Cay Lobos were 

 received in two consignments and cover the period of twelve 

 months, from August, 1900, to May, 1901. Forty species are in- 

 cluded, bringing the total number of species observed on the Cay 

 to 54, which, when we consider that the Cay is but a bare rock of 

 a few acres, standing well out at sea, is no inconsiderable number 

 for observations extending over such a short period. It is to be 

 regretted that Mr. Thompson has been removed to another station 

 so that we are unlikely to receive further consignments from this 

 locality; but Mr. Thompson has already sent a small collection 

 from his new station, which is dealt with in this paper, and we 

 may therefore hope to receive many further records from him. 



Of the birds procured one of the most noticeable is Araf7ius 

 gtganteus, but from the direction of their flight, and the time of 

 year (28th Jan.) it is probable that they were merely moving 

 along the coast of Cuba, and not on any direct migration. For- 

 phyrjo martinica occurs as a solitary wanderer, most probably, 

 considering the lateness of the hour (4 a. m.), from some northern 

 region. Helmintherus swainsoni, De^idrceca ccerulea, Sylvania 

 mitrata, Pyranga rubra, and Empidonax acadicus are recorded for 

 the first time within the limits of the Bahamas. 



Looking at the collection from a Cuban point of view we may 

 notice the occurrence of Dendrxca eve/ynce, which has not yet, 

 as far as we are aware, been observed in Cuba, but which, 

 from the occurrence of this specimen, probably occasionally 

 straggles there. 



As regards the nights on which large movements were observed, 

 the 20th Oct. and the 22nd Nov. were those on which most species 

 were procured on the fall migration, and in both cases the wind 

 was northeast. October seems to be the chief migratory month, 

 as specimens were got on every night that the elements proved 

 favourable. 



On the spring migration the nights of the 15th and 21st March, 



