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  2. Alula - Wikipedia

    en.wikipedia.org/wiki/Alula

    The word is Latin and means "winglet"; it is the diminutive of ala, meaning "wing". The alula is the freely moving first digit, a bird's "thumb", and typically bears three to five small flight feathers, with the exact number depending on the species. There also are minor covert feathers overlying the flight feathers.

  3. Pennaceous feather - Wikipedia

    en.wikipedia.org/wiki/Pennaceous_feather

    The calamus is hollow and has pith formed from the dry remains of the feather pulp, and the calamus opens below by an inferior umbilicus and above by a superior umbilicus. [2] The stalk above the calamus is a solid rachis having an umbilical groove on its underside. Pennaceous feathers have a rachis with vanes or vaxillum spreading to either side.

  4. Standard-winged nightjar - Wikipedia

    en.wikipedia.org/wiki/Standard-winged_Nightjar

    The adult male grows a wing ornament during the breeding season which consists of a broad secondary flight feather [4] on each wing elongated to up to 53.5 centimetres (21.1 in), [2] over twice the length of the bird's body. In normal flight, these feathers trail behind, but in display flight they are displayed like standards. [2]

  5. 6 Best New Costco Clothing Items That Are Worth Every Penny - AOL

    www.aol.com/6-best-costco-clothing-items...

    Nautica Men’s Mixed Media Jacket. Price: $29.99. GOBankingRates price matched the Nautica men’s mixed media jacket sold at Costco to the men’s mixed media jacket sold on the Nautica website ...

  6. Flight feather - Wikipedia

    en.wikipedia.org/wiki/Flight_feather

    Red kite (Milvus milvus) in flight, showing remiges and rectrices. Flight feathers (Pennae volatus) [1] are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (/ ˈ r ɛ m ɪ dʒ iː z /), singular remex (/ ˈ r iː m ɛ k s /), while those on the tail are called rectrices (/ ˈ r ɛ k t r ...

  7. White cockatoo - Wikipedia

    en.wikipedia.org/wiki/White_cockatoo

    The feathers of this species and others create a powder similar to talcum powder that easily transfers to clothing. In common with other cockatoos and parrots, the white cockatoo has zygodactyl feet with two toes facing forward and two facings backward, which enable it to grasp objects with one foot while standing on the other, for feeding and ...