The Hairy Woodpeckers 
Bernardino Mountains, Dr. Grinnell says: 1 “The resonant rattling 
drum of the Cabanis Woodpecker identified this species from any other 
of this region. Near Dry Lake, 9000 feet altitude, dead tamarack pines 
were selected for this purpose, and on June 23rd, 1905, I listened for many 
minutes to a remarkable demonstration of this bird. Different branches 
Taken in the Warner Mis. Photo by the Author 
THE UPPER LIMITS OF CABANIS’S NESTING RANGE 
were tattooed in rapid succession, so that a xylophone-like variety of 
tones was produced, very impressive and far-carrying through the other¬ 
wise quiet forest.” 
The nest of this bird must also be excavated in a tree, either a dead 
fir or pine, or, more rarely, a living alder. It may be at any convenient 
height in the tree, from four to eighty feet; but it will be about ten inches 
deep and it will have no lining save a few fine chips, among which the 
crystal white eggs, four or five in number, lie partially imbedded. Incu¬ 
bation is begun anywhere from the last week in March to the last in 
May, according to altitude; and but one brood is raised in a season. These 
woodpeckers are exceptionally valiant in defense of their young, the male, 
1 “The Biota of the San Bernardino Mountains,” by Joseph Grinnell, Berkeley. The University Press, Dec 
31, 1908. 
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