352 XOIITH AMKIilCAN BIKDS. 



their Itiiiiows. In Arizona, according' to Dr. (N»ues, tlicy aru siunmer resi- 

 dents, lircfdinix altundanlly, arriving late in April and remaining until nearly 

 the last «»t* Sc'ptenilier. 



At Kagle I'ass, Mr. Dresser met these birds, arriving from the South, on 

 the iMst of Fehruarv. There, and also at San Antonio, thev were vervcom- 

 ni(»n, brei'ding in the towns, making their nests iunler the eaves and in holes 

 in the old walls, dej)ositing their eggs by the 2.')th of A])ril. Dr. Kennerly 

 also found this Swallow very al)undant along the I'olorailo IJiver in Febru- 

 ary. Its llight Seemed to him to be like that of the eommon liarn Swallow. 

 Dr. lleermann freiiuently met M'ith this speeies during the journey from the 

 junction of the (iila and Colorado Kivers through Mexico, Xew ^^exieo, and 

 Texas, to San Antonio. In the latter i)lace he found them breeding almost 

 entindy in crevices in the walls of houses. 



In the vicinity of Washington, I>r. Coues found this Swallow a summer 

 resident, l)ut rather rare, arriving in the third week of April, and leaving 

 about the middle of September. 



]Mr. Ifidgway s])eaks of this bird as one of the most abundant Swallows 

 of the West, inhabiting the river valleys, antl breeding in holes in the banks 

 of the rivers. He says that in Southern Illinois it is much more abuudant 

 than the C. ri^mna, though both nest in the same l)anks. 



This s]>ecies was first found breeding in Carlisle, Tenn., by Professor Baird, 

 in the sunnner of I84o. Tlie following year I visited this locality early in 

 June, and had an o]>])ortunity to study its habits during its breed ing-.season. 

 AVe found the bird rather common, and examined a number of their nests. 

 xSone that we met with were in places that had been excavated by the birds, 

 although the previous season several had been found that had apparently 

 been excavated in banks in the same manner with tlie liank Swallow. All 

 the nests (.seven in nund)er) that we then met with were in situations acci- 

 dentally adajited to their need, and all were directly over running water. 

 Some were constructed in crevices between the .stones in the walls and arches 

 of bridges. In several instances t'^e nests were but little above the surface 

 of tlie stream. In one, the first laying had been flooded, and the eggs chilled. 

 The l)ii(ls had constructed another nest above the first one, in which were 

 six fresh eiigs, as manv as in the other. One nest had been built between 

 the stones of the wall that formed one of the sides of the Hume of a mill. 

 Two feet al>ove it was a frequented footpath, and, at tlie same distance below, 

 the water of the mill-stream. Another nest was between the boards of a 

 small building in which revolved a water-wheel. The entrance to it was 

 through a knot-hole in the outer jtartition, and the nest rested on a small 

 rafter between the outer and \]u^ inner boardings. 



The nests were similar w their construction to those of the Bank Swal- 

 low, composed of dry grasses, straws, and leaves, and lined with a few feathers ; 

 but a nmch greater amount of material was made use of, owing, perhaps, to 

 the exposed positions in which they were built. 



