primary feather การใช้

• It has white primary feathers that form a crescent in flight.
• Paul measured some of the inner primary feathers, finding rachises across.
• The wings are long, pointed, and have nine primary feathers.
• The underwing is grayish with dark tips to the outer primary feathers.
• The primary feathers range from dark grey to brown.
• The primary feathers, wing coverts, and under-wing coverts are blue.
• The primary feathers also appear black and white.
• There were about five primary feathers on each wing, the longest measuring about.
• Its flight is mainly gliding due to very long primary feathers and small breast muscles.
• His wings fell to his side, and his primary feathers reached out to the ground.
• The white tips of the wings ( primary feathers ) seen in flight are another diagnostic characteristic.
• It also has barred primary feathers and tail feathers, larger speckles and more pronounced white spots.
• The primary feathers may not be fully grown until February or March when the head is still streaked.
• The shelf made a perfect spot for the primary feathers to lay across in their life-attachment.
• Among standard measurements, its primary feathers and a narrow, sharply-defined black band on the tail.
• Nudds and Dyke reported a diameter of for the longest primary feather, which Paul could not confirm using photographs.
• At 14 days, their primary feathers begin emerging, and they are fully feathered by 35 36 days old.
• The primary feathers of the wing are black and a single black band at the tip of the tail are distinctive.
• The bases of adults'primary feathers are pale silver, giving a'window'appearance when viewed from below.
• Wedgebills have their sixth and seventh primary feathers as well as the bends in the edges of the wings in white.