KiRKWOOD, Cerulean Warbler in Maryland. 



Aug. 15. One singing in gate woods. 



Apr. 29, 1900. One singing on bare branch of apple tree; 

 finally flies into pig woods. 



May 6. Watch one singing in pig woods and hear another at 

 same time ; later hear one in gate woods where it is also sing- 

 ing in afternoon. 



May 7. One singing at house this morning. 



May 13. Two singing at once in pig woods. See pair, male and 



female, in gate woods. 

 May 20. Forenoon singing in pig woods; afternoon singing in 



gate woods. 



May 27. While watching male singing as it flies after female in 

 pig woods, hear another singing in the distance. 



June 3. Forenoon singing in pig woods; about noon singing in 

 gate woods; afternoon don't hear it at all. 



June 4. One singing in pig woods. 



June 10. Hear one singing in gate woods and in a minute 

 or two see it chasing a female Redstart round top of a low 

 oak, jerking out its song all the time. Happening to look 

 directly overhead, see nest on lowest branch of a tulip tree, 

 and going to one side see female on nest; 3 p. m., one singing 

 in gate woods ; a little later one singing in pig woods. 



June 17. One singing in pig woods. 



June 18. One singing in pig woods. 



June 20. Two singing at once, nearly all day, in pig woods. 

 July 15. Watch one singing in pig woods and hear another at 

 same time. 



Aug. 19. See two or three and hear two or three others singing 

 immature or imperfect (?) songs in pig woods. 



I have given the above memoranda verbatim as made at the 

 time and it will be noted that only twice was the species found in 

 the dense woods. This does not prove that they may not have 

 been there often enough, only that I did not observe them there, 

 while I was almost certain to find them in either one or other of 

 the two open pieces. 



In habits this bird considerably resembles the Worm-eating 

 Warbler, being rather slow and sedate in its movements. It will 

 also sit for long periods motionless and silent, on a dead twig 



'^°''i^oT"'] KiRKWOOD, Cerulean Warbler in Maryland. 141 



under the branches proper of the high trees. Here it also to a 

 considerable extent does its hunting. Its song is so distinctive 

 that after being once recognized it can never be confused with 

 that of any other bird. Although recognizing the impossibility of 

 portraying bird songs, I venture on the following which, however, is 



_AAA AAA 



wechchch ch we je je je 



not very satisfactory. It also gives its song in a low tone as if it 

 whispered it, and unless the bird is carefully watched the observer 

 might be led to believe that he heard a second bird singing in the 

 distance. I have watched a bird sing thus between each regular 

 song, at other times it would not give it at all, or only occasionally, 

 while on two or three occasions I heard it given for quite a while 

 to the exclusion of the regular song, and quite often have heard 

 it given two or three or even more times in succession between 

 regular songs. 



The nest found on June 18, 1899, could not at that time be 

 definitely stated to be a Cerulean's, as only the Redstart that 

 demolished it was seen at it. It was, however, an exact counter- 

 part of the nest collected on June 10, 1900. This latter nest 

 contained four eggs, very slightly incubated. Their ground color 

 is a pale grayish with a slight bluish cast, marked with pale red- 

 dish specks and spots, nearly all being on the larger end. One 

 egg, however, has also some fairly large blotches of a much lighter 

 reddish round the girth. Underlying this on the larger ends of 

 all are lilac spots of different shades. 



The nest is made of brown bark fibre, with some fine grass 

 stems among it, and is finished inside with a few black horse- 

 hairs. Outside it is finished with gray shreds of bark, spider 

 web, and a few small fragments of newspaper that had been water- 

 soaked. It measured, inside if inches across by i inch deep; 

 outside 2 J inches across. As the branch sloped, one part of the 

 rim is within f of an inch of it, while the opposite part is i| inches 

 above it, the material comes down on one side of branch to 

 inches below the rim. On this side a tiny twig arches out from 

 branch and extending to the rim is imbedded in the nest, and the 

 leaves which grew from its top shaded the nest. On the other 

 side the material merely came down to the branch, which meas- 



