elanus การใช้

• It was not until the 1960s that a similar molt schedule established its affinity to " Elanus ".
• "Elanus " species are primarily rodent hunters, searching for prey from a perch or often hovering like kestrels.
• A taxonomic proposal based on DNA studies has recommended classifying " Elanus " kites as a separate family ( Elanidae ).
• In the mid-20th century it was found to be related to " Elanus " based on morphology and its molt schedule.
• Some authors use the terms " hovering kite " and " soaring kite " to distinguish between " Elanus " and the milvine kites, respectively.
• Wink and Sauer-Gurth However, Lerner and Mindell found that the osprey was less related, but " Elanus leucurus " was basal to the other Accipitridae.
• In the 1950s, several authors found " Gampsonyx " was related to " Elanus " rather than the falcons, based on morphological features and molt schedule.
• The following year he gained access to specimens of the fork-tailed kites and split them from " Elanus " into a separate genus, " Nauclerus ".
• It had been grouped with the " Elanus " kites or with the larger American swallow-tailed kite; in 1843 Ren?Lesson assigned it to a separate genus, " Chelictinia ".
• For some recent decades, it was lumped with the black-winged kite of Europe and Africa as " Elanus caeruleus " and was collectively called "'black-shouldered kite " '.
• These three " Elanus " species have comparable plumage patterns and sizes, however, they are now regarded as distinct, and the name black-winged kite is used for " E . caeruleus ".
• The genus name is derived from the Kite genus " Elanus ", in reference to the long wings, and Greek " daktylos ", " finger ", referring to the wing finger of pterosaurs.
• Around the same time, in 1823, Louis-Pierre Vieillot had placed the group ( in five species ) together into his own genus " Elano飀es ", rather than Savigny's " Elanus ".
• Like other " Elanus " kites, The black-shouldered kite grips a vertical branch with a foot on either side, each one above the other and turned inwards, which enables them to maintain a secure footing on relatively small branches.
• But Vigors noted that only the black-winged kite had rounded undersides on the nails of its talons, a trait found in the osprey but not in any other raptors, and thus suggested a separation of " Elanus " into two sections.
• This Eurasian and African species was sometimes combined with the Australian black-shouldered kite ( " Elanus axillaris " ) and the white-tailed kite ( " Elanus leucurus " ) of North and South America which together form a superspecies.
• This Eurasian and African species was sometimes combined with the Australian black-shouldered kite ( " Elanus axillaris " ) and the white-tailed kite ( " Elanus leucurus " ) of North and South America which together form a superspecies.
• The "'black-winged kite "'( " Elanus caeruleus " ) is a small diurnal bird of prey in the family Accipitridae best known for its habit of hovering over open grasslands in the manner of the much smaller kestrels.
• On May 20, two Japanese men were detained by customs officers at Soekarno-Hatta International Airport for trying to smuggle several protected species-- consisting of 33 malu-malu ( loris or Nycticebus coucang ), four alap-alap eagles ( Elanus hypoleocus ), three Rajawali hawks and two owls.
• The name " black-shouldered kite " was formerly used for a Eurasian and African species, " Elanus caeruleus ", with the Australian species, " Elanus axillaris ", and the North American species, the white-tailed kite " Elanus leucurus ", treated as subspecies of this.