culmen การใช้

• Non-breeding culmen is straight, appears slightly uptilted.
• Among standard measurements, the exposed culmen is.
• They have a short conical black bill with an obvious curve to the culmen.
• The culmen was arched, and the maxilla overlapped the mandible at the base.
• It is distinguished, however, by a larger bill with a straight culmen.
• The culmen length measures 194  275mm.
• Juvenile specimens can be determined by observing small corrugations on the lateral areas of the beak culmen.
• The shape or color of the culmen can also help with the identification of birds in the field.
• After the autumn culmen, but in spring the bill becomes bluish-grey with a small black tip.
• Pine siskin in its typical culmen, compare with a short bill in European siskin, with a decurved culmen.
• Pine siskin in its typical culmen, compare with a short bill in European siskin, with a decurved culmen.
• The species has a distinct " even " curvature of its culmen that is not found in any other icterid.
• The hard, inflexible culmen, the exposed bill portion as measured along the top of the beak, is only.
• Specimens examined by Peter Cotton had an average wing length of 60.5mm and exposed culmen length of 18.5mm.
• It is differentiated by the lower breast and abdomen coloration, the male's distinctive growling song, and feathered culmen base.
• The bill is yellow with a blue and black line on the culmen and tip, and the feet are greenish-grey.
• During the breeding season particularly, the males are characterised by the base of their culmen, which takes on various shades of red.
• For example, the culmen of the parrot crossbill is strongly decurved, while that of the very similar red crossbill is more moderately curved.
• Among standard measurements, which at average and maximum are greater than any other living owl other than tail length, the culmen is around.
• The culmen of a juvenile common loon is all dark, while that of the very similarly plumaged juvenile yellow-billed loon is pale towards the tip.