82 THE WILSON BULLETIN No. 63. 



We watched them for some time, then, after collecting a few al- 

 most as fast as we could load and fire, returned to camp for break- 

 fast. All day long when we looked up we could see the same steady 

 stream making south over the land, while during the warmer parts 

 of the day, the higher region of the air was filled with them, one 

 above the other as high as the eye could reach, circling about hither 

 and thither, preparatory to proceeding. A hundred birds could be so 

 counted during most of the day ; but this could not have been the 

 culmination of the migration, for we were informed that the day 

 previous to that of our arrival, on the 23d, one of the residents killed 

 seventeen at one shot. This must have been a great flock, and we 

 saw nothing like it during our stay. 



After this we saw but occasional Martins each day until September 

 5, when another smaller flight occurred. At this time we counted 

 them at the end of the Point, and they passed over at about the rate 

 of ten every fifteen minutes. From our station at camp we judged 

 that they continued at about the same rate all day. During the pre- 

 vious flight there were double this number passing, and perhaps 

 treble would be closer to the mark. The former flight was com- 

 posed mostly of adults of both sexes with a few juvenile males. The 

 latter were all females, a few adult. No males at all were seen dur- 

 ing our period of observation at the end of the Point when nearly all 

 passed close enough to us to make this point practically certain. 



The first flight was undertaken in a light breeze blowing from the 

 south, but the latter was in the teeth of a good brisk wind, bathing 

 the whole beach with a line of white breakers extending for some 

 distance from shore. In spite of this the martins and swallows 

 sailed steadily out to sea without a moment's hesitation or appearing 

 even to notice the stress. At the same time we noticed other species, 

 notably Cedarbirds, essay the passage, but after thorough testing 

 of conditions, concluded it too strenuous and returned for more fa- 

 vorable times. 



From statements made by several of the residents living in the 

 vicinity of the lower part of the Point the spring flight of the mar- 

 tins about the middle of April, 1907, must have been even more ex- 

 tensive than the fall flight. They relate how the birds, overtaken 

 by the cold, raw weather that prevailed, clustered in immense num- 

 bers at night in all available out-houses, where they covered every 

 possible perching place, completely lining the walls, floors, etc., es- 

 pecially in a deserted barn. We have not been fortunate enough to 

 be present on the Point during the period of the spring flight. 



144. Petrochelidon lunifrons. Cliff Swallow. 



Though never very common we have found a limited number of 

 Cliff Swallows on most of our seasonable visits. Several seen May 

 13, 1905. Two September 11 of the same year in company with a 



