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92  Tochimilco
Petrochelidon melanogaster Com.
Chelidon erythrogaster. Common
Ptiliogonys cinereus. Quite common. They usally go in flocks of 15 to 40. Fly from tree to tree usually keeping well up towards the tops. I sometimes saw them hunting among the oaks & madronos something after the manner of flycatchers. A flock seems to frequent the same grounds often day after day.
Lanius ludovicianus excubitorides. Common from the plain up to lower edge of pines.
Basileuterus. A species of this genus was common on open hillsides usually.
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Tochimilco  93
Catherpes mex. conspersus. Not uncommon on the house in the town and along the barrancas.
Thryothorus b. bairdii. Common from the plain up to pines.
Parus meridionalis. Common down to lower edge of pines.
Psaltriparus melanotis. Common down into the oaks.
Catherus. A species of this genus was seen on several occasions among the oaks.
Sialia mexicana. Common down to lower edge of pines in openings.
The following were omitted in their proper places. (over)
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