36 MICHIGAN BIRD LIFE. 
Family 1. COLYMBIDA.—Grebes. 
KEY TO SPECIES. 
A. Wing more than 5 inches (and less than 9).—B, BB. 
B. Wing more than 7 inches.—C, CC. 
CG. Culmen 24 inches or more.—Western Grebe. (Appendix.) 
CC. Culmen less than 24 inches.—Holboell’s Grebe. No. 1. 
BB. Wing less than 6 inches.—D, DD. 
D. Bill compressed, deeper than wide at base.—Horned Grebe. No. 2. 
DD. Bill depressed, wider thandeep at base.—EaredGrebe. (Appendix.) 
AA. Wing 5 inches or less.—Pied-billed Grebe. No. 3. 
1. Holboell’s Grebe. Colymbus holboelli (Reinh.). (2) 
Synonyms: Red-necked Grebe.—Podiceps holbellii, Reinh., 1853.—Podiceps greisegena 
of many authors.—Podiceps greisegena var. holboelli, Coues, 1872. 
Largest of the so-called “ Hell-divers,”’ intermediate in size between the 
common Grebes and the Loon. To be identified positively only by exact 
measurements in comparison with detailed description. 
Distribution.—North America at large, including Greenland, also eastern 
Siberia and southwest to Japan. Breeds in high latitudes, migrating 
south in winter. 
This grebe has been taken in Michigan at widely separated places, 
but less than a dozen times in all so far as known. The following are the 
records known to us: One taken at Hillsdale, in the spring of 1890, by 
Prof. Frank Smith, now in museum of Hillsdale College; one in the collec- 
tion of B. J. Savage, Monroe, an autumn specimen taken about 1901; one 
picked up frozen March 12, 1900, at Greenville, Montcalm county, mounted 
by the late Percy Selous and now in the museum of Agricultural College; 
one in collection of C. J. Davis, Lansing, taken at Pine Lake, Ingham 
county, in autumn, exact date not known (This is the specimen recorded 
in Cook’s “Birds of Michigan” as the Western Grebe, Afchmophorus 
occidentalis); another taken at same place (Pine Lake) by T. L. Hankinson, 
October 30, 1897; one shot at Capac, St. Clair county, February 15, 1904 
(Swales); one in high school collection at Sault Ste. Marie, collected there 
(1901?) by Stewart Ten Eyck; one mounted specimen in the Barron col- 
lection at Niles, without data; one said to have been taken at Mitchell’s 
Bay, St. Clair Flats (Saunders). This Grebe is said to be a spring and 
fall visitor on the Detroit River, by MclIlwraith; observed by Boies about 
Mud Lake on the east side of Neebish Island, St. Mary’s River, in summer 
of 1893; said to be a rare migrant in Delta county (Van Winkle); and a 
common migrant in the fall at Ann Arbor (Covert). 
The above records indicate practically all that we know of this species. 
It comes to us from the north in the autumn, some individuals doubtless 
remain on the unfrozen waters of the state through the winter, and it re- 
tires northward beyond our limits on the approach of warm weather; the’ 
records are too few to give us any idea of its actual migration movements. 
There is no.reason to suppose that it nests anywhere in the state. At 
Leech Lake, Minn., where a small colony was found nesting in June, 1903, 
