rostr-, rostro-, rostri- +

(Latin: beak)

angustirostral, angustirostrate (s) (noun); angustirostrals, angustirostrates (pl)
Animals with a narrow beak or snout.
birostrate, birostrated
Having a double beak, or two processes resembling beaks.
brevirostral (adjective)
Short-billed; having a short beak.
brevirostrate (adjective)
A reference to a bird that has a short bill or beak.
A tribe of perching birds, including those which have a strong conical (circular base tapering to a point) bill or beak; such as, the finches.
Having a bill shaped like a knife or coulter, as certain grallatorial birds (the heron, stork, etc.).
dentirostral, dentirostrate
Having a tooth-like projection on the cutting edge of the bill, or beak; such as, falcons and shrikes.
Without a beak.
1. Having a broad, deeply cleft beak, or bill; such as, swallows and goatsuckers.
2. With reference to a bird's beak, deeply cleft.
A group of birds having the bill, or beak, with a deep cleft.
lamellirostral, lamellirostrate
Having a beak equipped with thin plates or lamellae for straining water and mud from food, as the ducks, geese, swans, and flamingos.
A group of birds embracing the Anseres and flamingoes, in which the bill is lamellate.

Anseres are a Linnaean order of aquatic birds swimming by means of webbed feet; such as, the duck, or of lobed feet, as the grebe. Included in this order are the geese, ducks, auks, divers, gulls, petrels, etc.

A group of birds, including the hornbills, kingfishers, and related forms.
longiroster, longirostral
1. Having a long beak; one of the Longirostres, a family of wading birds distinguished by the length and tenuity [thinness, slenderness] of the bill.
2. A group of birds characterized by having long slender bills, as the sandpipers, curlews, and ibises.
loxia curvirostra
A bird; such as, a finch with a bill whose tips cross when closed.