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- $Unique_ID{BRD00711}
- $Pretitle{}
- $Title{Genus I.--Rhynchops, Linn. Skimmer}
- $Subject{Larinae; Rhynchops; Skimmer}
- $Journal{Birds of America: Volume VII}
- $Volume{Vol. 7:66-67}
- $Family{Larinae}
- $Genus{Rhynchops}
- $Species{}
- $Common_Name{Skimmer}
- $Log{
- Family*00710.txt}
-
- Portions copyright (c) Creative Multimedia Corp., 1990-91, 1992
-
- B I R D S O F A M E R I C A .
-
- By John James Audubon, F. R. SS. L. & E.
-
- ------------------------------------------
- VOL. VII.
- --------------------------------
-
-
- GENUS I.--RHYNCHOPS, Linn. SKIMMER.
-
-
- Bill longer than the head, nearly straight, tetragonal at the base,
- suddenly extremely compressed and continuing so to the end; upper mandible much
- shorter than the lower, its ridge sharp, the sides erect but a little convex,
- the edges approximated so as to leave merely a very narrow groove between them,
- the tip a little rounded, when viewed laterally; nasal groove rather short, near
- the margin; lower mandible with the angle extremely short, the dorsal line
- straight or slightly decurved, the sides erect, obliquely grooved, the edges
- united into a very thin blade, which fits into the narrow groove of the upper
- mandible, the tip rounded or abrupt, when viewed laterally. Nostrils
- linear-oblong. Head rather large, oblong, considerably elevated in front; neck
- rather short, thick; body short, ovate. Feet short, moderately stout; tibia
- bare below, with narrow transverse scutella before and behind; tarsus short,
- anteriorly covered with broad scutella; toes very small, the first extremely
- short and free, unless at the base; middle toe slightly longer than outer;
- anterior toes united by deeply emarginate webs. Claws long, compressed,
- slightly arched, rather obtuse. Plumage moderately full, soft, and blended;
- wings extremely long, and very narrow; primary quills excessively long, the
- first longest; secondaries short. Tail of moderate length, deeply forked, of
- twelve feathers. Tongue short, triangular, tapering; oesophagus wide; stomach
- rather small, oblong, muscular, the cuticular lining dense, with nine broad
- longitudinal rugae; intestine rather long, narrow; coeca very small; cloaca
- large, globular; the digestive organs are precisely similar to those of the
- Terns and smaller Gulls.
-