38 



THE OOLOGIST 



Set of three and one on June 4th. On 

 June 20th pai'ents were feeding all of 

 the youngsters which at this time were 

 about ten days old. 



Water Gap, Pa. Yellow Warbler. 

 Set of three and one along Broadhead 

 Creek on June 12th well incubated. 

 Did not re-visit. 



In this tabulation appears nineteen 

 cases of infringements against the 

 Yellow Warbler, three against the 

 Redstart, seventeen against the Red- 

 eyed Vireo, six against the Yellow- 

 throated Vireo, two against the 

 Warbling Vireo, one against the Chest- 

 nut-sided Warbler, one against the 

 Chipping Sparrow, two against the In- 

 digo Bunting and three against the 

 Maryland Yellowthroat, making a total 

 of fifty-four for the twelve years. 



Louis S. Kohler. 

 Bloomfield, N. J., Jan. 1, 1915. 



Sub-Species. 



Your opinion as given in the review 

 columns of THE OOLOGIST for Nov- 

 ember on the subject of "Geographical 

 races of American Birds" are shared 

 by many interested in the wild life 

 of our country. 



I remember some ten years ago read- 

 ing in a guide to the Xoological Gar- 

 dens in the Bronx that a huge brown 

 bear from Alaska could not be as- 

 signed to his proper sub-species until 

 after his death when his skull uncloth- 

 ed of flesh would reveal his proper 

 identity. I thought after reading this 

 that we had come to the limit. Your 

 subscribers have a good opportunity 

 to acquire more liberal views as to the 

 variations in a species. I remember 

 when a boy, peeping in a Magpie's nest 

 being surprised at the sight of seven 

 or eight eggs varying from light col- 

 ored to dark, and all unlike each other. 



Do you think that the English Spar- 

 row will develop changes from their 

 over-sea form? It seems to be proba- 

 ble that they will. 



One of your correspondence in a re- 

 cent number tells of finding a tree in 

 the town of Webb in this country with 

 a number of nests of the Great-blue 

 Heron in it. I suspect that the Herons 

 I saw in the ponds on the farm where 

 I now reside, come from there for food. 

 It must be a great many miles away. 



J. Thompson. 

 Ccld Brook, N. Y. 



Albino Robins. 



Thomas L. McConnell of McKees- 

 port, Pa., calls our attention to the 

 fact that prior to the date of the pub- 

 lication of the photograph of the Al- 

 bino Robin in the December issue of 

 THE OOLOGIST, two photographs of 

 an Albino Robin were published in 

 Bird Lore, Volume 12, pages 8 and 9, 

 the photographs having been taken by 

 R. W. Hegner. 



As Mr. McConnell says, "This is one 

 on us." 



Sharp-shinned Hawk. 

 Accipiter Velox. 



In the past fifteen or twenty years, 

 in this part of Massachusetts, this rare 

 little hawk has neither increased nor 

 decreased. 



It arrives here about the first week 

 in April but does not think of nest 

 building until about May 5th to 25th. 

 All nests I have found have been sit- 

 uated in pine trees at an average 

 height of thirty feet, rare cases at 

 seventeen feet and up to forty feet. 

 Also a new nest is made, never a 

 patched up old nest of any kind of 

 bird. 



The following description of the last 

 set taken is typical and will answer 

 for all sets I have had anything to do 

 with. 



Some weeks previous I had been 

 through this locality after larger and 

 earlier nesting hawks and had noted 

 a pair in a group of medium sized 

 pines, so determined to come back 



