. Life histories of North American diving birds : order Pygopodes . e could hardly realize what had was a larger, better built, and probably a more typical nest thanthose described above; it was floating in water about 3 feet deepand anchored near the edge of growing flags {Typha latifolia) andreeds {Scirpus laeustris); it measured 24 inches in diameter, theinner cavity was 6 inches across and slightly hollowed, and the rimwas built up 2 or 3 inches above the water; it was made principallyof dead reeds and flags, with a few green stems of the same, matted U> S. NATIONAL MUSEUM
. Life histories of North American diving birds : order Pygopodes . e could hardly realize what had was a larger, better built, and probably a more typical nest thanthose described above; it was floating in water about 3 feet deepand anchored near the edge of growing flags {Typha latifolia) andreeds {Scirpus laeustris); it measured 24 inches in diameter, theinner cavity was 6 inches across and slightly hollowed, and the rimwas built up 2 or 3 inches above the water; it was made principallyof dead reeds and flags, with a few green stems of the same, matted U> S. NATIONAL MUSEUM BULLETIN 107 PL. 4 ^ ■■»~ HsnKJiStKSt iliii?nf7*iH^ — n * uf n ~- t. MiA -i- ll HVHlKH^ inm^iomi T^-i^/-:;-li %:itf^f«^;4;.\ M^;:a)!W»*.;.;; ^y,^i^^M^|^^ffiKSj \ . /■ mM ^^m ^^^^l^^j^ jjg^aj^Sad :*-^ m ■■*>■> 12> ^■,^, ^^p fiftte^K^\t- R^ ^•r-tir Ukm^ jr-f-jfTTW >-M - r pffWBtfiSW ■.v,--.\^ .M-j^m^ ^!:s^ 1 H^ f ^^^ !^^P H w^ ifr*9n rtnc^ -^^Si-r-^ F^^- p.— / ? jfi;^!^^ rt- Lake Winnipegosis, Manitoba. A. C. Lake Winnipegosis, Manitoba. HoLBCELLs Grebe. For description see paoe 233 LIFE HISTORIES OF NORTH AMEBIOAN DIVING BIRDS. 11 together with a mass of algae and water mosses; it was lined withwell-rotted Throughout the greater portion of its breeding range the Hol-boells grebe is a widely scattered, solitary species. It breeds to someextent in the sloughs and marshes of the northern plains and prairieregions, but is more universally common in the marshy lakes andponds in the timbered regions of northern Canada, where one or twopairs only are usually found in each of the smaller lakes. Dr. Joseph Grinnell (1900) found this grebe breeding quite com-monly in the delta of the Kowak Eiver, Alaska, in June, 1899, wherenearly every pond or lake was the home of a single pair. He de-scribes what might be considered its courtship performance as fol-lows: We had just moored our steamer to the river bank and I was pushing m
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