BIRDS OF NORTH AND MIDDLE AMERICA 711 



Accip., pt. 4, 1922, 194.— Over and Thoms, Birds South Dakota, 1921, 88 

 (South Dakota; not common). — Wood, Univ. Michigan Mus. Zool. Misc. 

 Publ. No. 10, 1923, 42 (Fort Rice, N. Dak.); headwaters Mouse River, Sept. 

 8, 1873). — Mitchell, Can. Field Nat., xxxviii, 1924, 109 (Saskatchewan; 

 not common). — Griscom and Crosby, Auk, xhi, 1925, 536 (stat. Brownsville, 

 Tex.). — Taverner, Birds Western Canada, 1926, 209, in text (descr.; range; 

 Canada); Auk, xliv, 1927, 222 (near Oak Lake, Manitoba); Nat. Mus. 

 Canada Bull. 50, 1928, 93 (near Belvedere, Alberta) ; Birds Canada, 1934, 147, 

 in text (Canada). — Bailey, Birds New Mexico, 1928, 193 (genl.; New Mex- 

 ico).— Larson, Wils. Bull., xl, 1928, 47 (e. McKenzie County, N, Dak.). — 

 Palmer, Condor, xxx, 1928, 292, in text (patronymics). — Nice, Birds Okla- 

 homa, rev. ed., 1931, 77 (genl.; Oklahoma). — Bennitt, Univ. Missouri Stud., 

 vii. No. 3, 1932, 25 (Missouri; casual). — Roberts, Birds Minnesota, i, 1932, 

 359, in text (rare in Minnesota). — Wetmore, Auk, 1, 1933, 356, in text. — 

 Weydemeyer, Condor, xxxv, 1933, 122, in text (Lincoln County, Mont.; 

 sev. uncertain records). — Willett, Pacific Coast Avif., No. 21, 1933, 47. — 

 McCreary, Wils. Bull., xlvi, 1934, 123, in text (Wheatland, Wyo.; winter 

 record). — McCreary and Mickey, Wils. Bull., xlvii, 1935, 136, in text (se. 

 Wyoming; trans.; dates). — Swarth, Condor, xxxvii, 1935, 201, in text (tax. 

 status). — Alexander, Univ. Colorado Stud., No. 24, 1937, 91 (Boulder 

 County, Colo.; infrequent to common trans., may occur in winter and sum- 

 mer; spec. Univ. Colorado Mus.). — Bent, U. S. Nat. Mus. Bull. 170, 1938, 

 86 (life hist.). — Niedrach and Rockwell, Birds Denver and Mountain 

 Parks, 1939, 57 (not common, migr. and winter vis.; habits). — Gabrielson 

 and Jewett, Birds Oregon, 1940, 205, in text. — Long, Trans. Kansas Acad. 

 Sci., xliii, 1940, 440 (Kansas; common migr. in w. ; now rare; specs, from 

 Ellis County). — Twomey, Ann. Carnegie Mus., xxviii, 1942, 383 (Uinta 

 Basin, Utah). — Hill, Auk, Ixi, 1944, 230 (meas.). — Goodrich, Rep. Kansas 

 State Board Agr., Ixiv, No. 267, 1945, 182 (Kansas; migr. or winter in w. 

 Kansas). — Haecker, Moser, and Swenk, Nebraska Bird Rev., xiii, 1945, 

 10 (Nebraska; uncommon migr.). — Packard, Auk, Ixii, 1945, 375 (Colorado, 

 Rocky Mountain National Park). 



Falco columbariiis richardsonii American Ornithologists' Union Committee, 

 Auk, XXV, 1908, 370.— Cory, Publ. Field Mus. Nat. Hist., No. 131, 1909, 481 

 (Warsaw, 111., no date; Stevens Point, Lake Koshkonong, and near JanesviUe, 

 Wis., several records). — Dawson and Bowles, Birds Washington, ii, 1909, 

 538 (Washington; habits; distr.; descr.). — Wood, Auk, xliii, 1925, 145 (edge 

 of Turtle Mountain, N. Dak.). — Huey, Condor, xxviii, 1926, 102, in text 

 (Riverside and San Diego, Cahf.). — Peters, Bull. Essex County Orn. Club 

 for 1926 (1927), 21 (range; crit.; plum.); Check-list Birds of World, i, 1931, 

 296. — Grinnell, Dixon, and Linsdale, Univ. California Publ. Zool., xxxv, 

 1930, 196 (Lassen Peak, region, n. California, 1 spec). — Willett, Pacific 

 Coast Avif., No. 21, 1933, 47 (sw. California; occas. winter vis.; syn.; crit.). — 

 Vorhies, Jenks, and Phillips, Condor, xxxvii, 1935, 245, in text (Tucson, 

 Ariz.; spec). — Bond, Condor, xxxviii, 1936, 178, in text (live weight of 

 bird).— McLean, Condor, xxxviii, 1936, 16, in text (Lassen County, Calif.; 

 spec). — Grinnell and Miller, Pacific Coast Avif., No. 27, 1944, 110 

 (California; winter vis.). — van Rossem, Occ Pap. Mus. Zool. Louisiana 

 State Univ., No. 21, 1945, 64 (Sonora; winter vis.). 



Aesalon columbarius Subspecies a richardsoni Gubney, List Diurn. Birds Prey, 

 1884, 104. 



Tinnunculus columbarius richardsonii Oberholser, Auk, xxxv, 1918, 207. 



