BULLETIN
— OF THE —
Cooper Ornithological Club
A Bi-monthly Exponent of Californian Ornithology
PROMINENT CALIFORNIAN ORNITHOLOGISTS.
II. Rollo H. Beck
FEW more active ornithologists are found in California's present corps of field workers than the subject of our sketch—R. H. Beck. Having lived for years at Berryessa, Cal., which is almost a suburb of San Jose, nestling at the foot of the western slope of the Mt. Hamilton range, he has been within easy reach of a most interesting country and where much of his work has been done.
Mr. Beck first began practical collecting in t889 and in a few years possessed an excellent oological collection of native species. Among his earlier good finds were several pairs of Dotted Canon Wrens which were annual contributors of interesting sets of eggs at which time few sets of the species were in collections. His work among the birds has at all times been active and as a result he possesses a valuable collection of study material in skins. Mr. Beck has followed taxidermy ardently for years and has put forth some excellent groups, while others are in process at the present time.
On the Alviso marsh of San Francisco Bay in 1891, Mr. Beck secured two specimens of a form of the Sharp-tailed Sparrow which were the first taken on the coast and unlike the eastern species. The form was described by Mr. Robt. Ridgway and named in Mr. Beck's honor, Ammodramus caudacutus becki. The marsh mentioned has yielded a number of Black and Yellow Rail as a result of Mr. Beck's prowess.
For some years previous to Major Bendire's death Mr. Beck sent him many valuable notes on the nesting of little-known species which his extended field work had permitted him to secure. In Monterey Co., in 1891, he collected a nest and four eggs of the Rufous-crowned Sparrow which were secured by Major Bendire for the National Museum. Near the same locality he met with the Black Swift (Cypseloides niger) and his notes were subsequently embodied in Major Bendire's work.
In 1896 Mr. Beck in company with Mr. W. H. Osgood made an extended trip through the Sierra Nevada Mountains of Central California, spending most of the summer in the field and his good fortune again bore fruit. Two sets of eggs of special interest to science were taken; on June 10, 1896, he located a nest of the Hermit Warbler at 5000 feet altitude, placed 45 feet up in a pine, and by dint of carrying a heavy ladder up a steep hillside he secured the first positively authentic nest and eggs of this warbler. (Proc. Cooper Club, Nidologist IV, p. 79). On June 18, 1896, Mr. Beck collected a nest and four eggs of the Western Evening Grosbeak near the same locality having found it building a week before. This was the first set of this species known to science and together with the set of
