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aapen near the stusait nf the pass. On July 3 another nest ims found in a dead 
aspen somewhat lower down. A large opening below this nest loolced as though 
it might contain an owl or sotoetMAgg else of interest. IVhen I hammered on the 
trunk with a stick the adult sapsuckers were much excited and came flying down 
to perch near me, with crests raised, calling excitedly. 
23. 3phyrapicus thyroideus (Cass in). 
Williamson's 3apsucker. 
This Woodpecker was fairly connon in the forested area on the mesa form- 
ing the S'uimait of the Ohusoa Uountai ns. A female was observed feeding young 
out of the nest on June 30 and a i>air had wdll-grown young in a hole drilled 
in a living aspen at oamp near Be-e-khet-hom-nez on July 2. Both male and fe- 
male worked steadily carrying food to these all day long, ceasing only during 
showers of rain that fell at intervals. A sooond nest oontnAnlni; young Nearly 
fledged was found in a dead aspen in Oottonwood ^ss at an altitiide of 7600 
feet on July 3. 
4 
Adult birds were seen dally. The males had a loud rattling note like 
heh-h-h-h that gave tauch the same effect as a stick drawn rapidly across a 
hard corrugated surface. The druiomlng of this woodpeokor resembles that of 
Sphyrapious varius; it begins with a short roll whloh is followed by a double 
tap and then a single one and may be represented as tr-r-r-r-r- tan- tap- tap . 
21. flalanosphyra fomloivora aouleata (ideams) 
Arizona Anr-eatiiig Woodpecker. 
There were seen on a fence near a Navajo hogan above Crystal on July 3. 
Oakd are abundant here and the region is well suited to these birds. 
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