. An account of the mammals and birds of the lower Colorado Valley : with especial reference to the distributional problems presented . ix:- C^-^Wlf_,g. JJr, -m^. Fis. i> PLATE 8 Fig. 10. Ironwooi] tree (Olneya tesota) photographed March 10. 1910, in thewash pictured in the previous plate. This individual, an unusually large one,was 90 inches in circumference of trunk two feet above the ground, 31 feetin extreme height, and with a foliage expanse of 50 feet. The thorny branchesafforded protection to several nests, old and new, of the verdin. The blossomsof this plant, which appear in May, a
. An account of the mammals and birds of the lower Colorado Valley : with especial reference to the distributional problems presented . ix:- C^-^Wlf_,g. JJr, -m^. Fis. i> PLATE 8 Fig. 10. Ironwooi] tree (Olneya tesota) photographed March 10. 1910, in thewash pictured in the previous plate. This individual, an unusually large one,was 90 inches in circumference of trunk two feet above the ground, 31 feetin extreme height, and with a foliage expanse of 50 feet. The thorny branchesafforded protection to several nests, old and new, of the verdin. The blossomsof this plant, which appear in May, attract numerous hummingbirds. Fig. 11. Palo verde tree (Parhinsonia torreyana) of unusual size. At thetime of blossoming, in April, this tree is resorted to by many migrating birds,both for the flower nectar and the insects. Like other elements in the washassociation the palo verde is frequented by verdins, plumbeous gnatcatchersand cactus wrens. Photograph taken February 27. 1910, on the Arizona sideabove Mellen, near the mouth of the Sacramento wash. [284] UNIV, CALIF, PJBL ZOOL, VOL. 12 [GRIMNELL] PLATE
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectmam
