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A History of North American Birds; Land Birds; Vol. 2 of 3

Note 109 — Family CYPSELIDÆ.—The Swifts.

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Panyptila sancti-hieronymi, Salvin (P. Z. S. 1863, 190, pl. xxii; Scl. P. Z. S. 1866, 607). May be the northern form of cayanensis, which, however, we have not seen.

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