112 THE WILSON BULLETIN— June, 1921 



survey of each of these areas during the breeding season (June), 

 and counted the male birds by their song. The total of this cen- 

 sus gave 2030 birds assumed to be nesting males. Assuming that 

 each of these birds was mated there were, then, 4060 breeding 

 birds in the park, or a trifle better than three to the acre. 



The book also contains an annotated list of all the birds known 

 to occur within the park, including migrants and winter birds; 

 and 173 birds are thus listed. 



The author gives a chapter on the " morning awakening " song 

 of the birds, which makes an interesting contribution to this sub- 

 ject. He also proposes to make it a finable offense to permit the 

 English Sparrow to nest on one's premises. An exceptionally good 

 map of Swope Park is attached to the inside of the cover, and 

 will be of great value to local students, as well as of interest to 

 the general reader. 



By way of adverse criticism attention might be called to the 

 very many typographical errors in the scientific nomenclature, and 

 to one or two cases of transposition of the halftone legends. Two 

 or three arithmetical errors also occur on page 67. 



On the other hand the little book is excellently conceived and 

 will help many a beginner in bird-lore, while being read also, with 

 enjoyment, by the experienced student. The text Is presented in 

 a literary style which deserves notice, and which reveals the fact 

 that the author is thoroughly in love with the woods and wild life. 

 The most enjoyable writers on birds are usually those whose in- 

 terest and sympathy are not confined to that one aspect of nature. 

 The fund of information presented is based upon much labor, and 

 will make the task easy for those who wish to study birds in the 

 area treated. T. C. S. 



List of North Dakota Birds Found in the Big Coulee, Turtle 

 Mountain and Devil's Lake Region 



There appeared in 1917 a " List of North Dakota Birds " ^ by 

 Elmer T. Judd. This list contains two hundred and fifty-five 

 species, which have been observed by the author In th northern 

 part of that state, particularly in the region of Devil's Lake and 

 the Turtle Mountains. The work upon which this list is based 

 was done between the years 1890 and 1896. So far as the reviewer 

 is aware this list has been distributed only privately. It appears 

 to have been very carefully prepared, and is no doubt the most 

 authentic list yet published for the region covered. T. C. S. 



' List of North Dakota Birds Found in the Big Coulee, Turtle 

 Mountains and Devil's Lake Region. Published 1917 by the author, 

 Elmer T. Judd, Cando, N. D. 



