_Destruction at lighthouses._--Lighthouses with fixed white lights have caused considerable destruction of bird life during migration and the black-throated blue warbler seems to have been especially lured to those in southern Florida. Records were received from several of these lighthouses over a period of 5 or 6 years. Those from Sombrero Key are most detailed and give an interesting picture of migration at that point, since they include date, weather conditions, number of birds that struck, number killed, and hours during which the birds struck the light. Comparatively fewer birds struck the light in spring than in fall. The spring dates are from March 9 to May 29; but in 4 years birds are reported to have struck the light only on 24 nights and 4 individuals is the greatest number reported. In the fall, the records extend from September 3 to December 5, the heaviest nights being from the middle of September to late October. In two different years birds struck the light on 19 nights in two months. The greatest number in one night was 400 with 56 killed. In one of those years 1146 birds struck the light; of these 193 were killed. It was not only on stormy nights that the birds were attracted, as 130 struck and 15 were killed on a night described as calm and dark. Sometimes they kept striking all night, but on others the flight seems to have been concentrated, as when 300 birds struck in 3-1/2 hours. On a few occasions the mortality was as high as one-third of the birds that struck. On the night of January 26, 1886, two birds struck the light. These were either wintering birds or extremely early migrants. _Egg dates._--Massachusetts: 6 records, May 28 to July 5; 3 records, June 2 to 8. New Hampshire: 17 records, June 3 to 22; 9 records, June 10 to 15. New York: 51 records, May 29 to June 20; 37 records, June 3 to 12, indicating the height of the season. Pennsylvania: 57 records, May 25 to June 26; 32 records, May 30 to June 6. North Carolina: 10 records, May 5 to June 22; 6 records, June 4 to 11. Virginia: 19 records, May 26 to June 18; 14 records, May 27 to June 4 (Harris). DENDROICA CAERULESCENS CAIRNSI Coues CAIRNS' WARBLER PLATE 31 HABITS This local race of the black-throated blue warbler, breeding in the southern Alleghenies, was named by Dr. Elliott Coues (1897) in honor of its discoverer and original describer, John S. Cairns of Weaverville, N.C. Dr. Coues, at that time, mentioned only the characters of the male, but those of the female are fully as well, perhaps more satisfactorily, marked than those of the male. Ridgway (1902) describes both very well and concisely as follows: