...the tip, the lower mandible falling within its chord. Nostrils superior, broadly open, and iiearly circular, without any adjacent membrane, the edges...rather less so externally. Claws strong, much curved The preceding diagnosis is intended to characterize two groups of Swallows, differing especially from...

...lower mandible falling within its chord. Nostrils superior, broadly open, and nearly circular, withont any adjacent membrane, the edges rounded. Legs stout....rather less so externally. Claws strong, much curved The preceding diagnosis is intended to characterize two groups of Swallows, differing especially from...

...(Type Ifirumlo purpurea, L. (H. subis, L.)) -BAIRD, Birds N. Am. 1858, 314. lower mandible falling within its chord. Nostrils superior, broadly open,...without claw ; the joint feathered ; lateral toes about e«jual ; the basal joint of the middle toe half free internally, rather less so externally. Claws...

...maxilla sinnated, decidedly convex for basal half, then as concave to the tip, the lower mandible falling within its chord. Nostrils superior, broadly open,...without any adjacent membrane, the edges rounded. Legs Btnut. Tarsus equal to middle toe without claw ; the joint feathered ; lateral toea about equal ; the...

...maxilla sinuatod, decidedly convex for basal half, then as concave to the tip, the lower mandible fulling within its chord. Nostrils superior, broadly open,...rather less so externally. Claws strong, much curved. Nest in hollow trees. Eggs white. "The species of this genus are the most powerful and robust of the...

...maxilla sinuated, decidedly convex for basal half, then as concave to the tip, the lower mandible falling within its chord. Nostrils superior, broadly open,...internally, rather less so externally. Claws strong, muoh curved. Nest in hollow trees. Eggs white. "The species of this genus are the most powerful and...