Cara mengidentifikasi Olive-backed Sunbird

Untuk mengidentifikasi Olive-backed Sunbird (Nectarinia jugularis) dengan benar, periksa setiap fitur ini. Burung bisa sulit dikenali, karena perilaku, habitat, dan panggilan sering mengonfirmasi apa yang tidak bisa dilakukan satu foto.

Ukuran sekilas

Panjang

10-12 cm

Bentang sayap

14-16 cm

Berat

6-11 g

Ciri fisik untuk diperiksa

1. 1

   Bulu

   Warna dan pola bulu keseluruhan.

   Adult males typically have a metallic, iridescent blue-black throat and upper breast, contrasting with a bright yellow belly and olive-green back. The rump is often yellowish. Adult females lack the iridescent throat, having a duller olive-green head and back, and a yellow underparts, sometimes with a faint greyish wash on the throat. Both sexes have dark flight feathers and tail.

2. 2

   Bentuk paruh

   Bentuk dan warna paruh, tanda lapangan kunci.

   Long, slender, and distinctly decurved (downward-curved) black bill, perfectly adapted for probing into flowers for nectar.

3. 3

   Warna mata

   Warna iris dan tanda khas di sekitar mata.

   Dark brown.

4. 4

   Warna kaki

   Warna kaki dan jari.

   Dark grey to blackish.

5. 5

   Ciri pembeda

   Ciri menonjol yang membedakan spesies ini.

   The iridescent blue-black throat of the male is a key feature. The long, curved bill is characteristic of sunbirds. The bright yellow belly is also a prominent field mark.

6. 6

   Penampilan muda

   Bagaimana yang muda berbeda dari yang dewasa.

   Juveniles resemble adult females but are generally duller, with a paler yellow belly and a less distinct olive-green back. Young males may show some dusky streaking on the throat before developing the full iridescent plumage.

7. 7

   Perubahan musiman

   Variasi bulu antara musim kawin dan tidak kawin.

   No significant seasonal plumage changes. Breeding and non-breeding plumages are generally similar, though the iridescence might appear more vibrant during breeding displays.

8. 8

   Dimorfisme seksual

   Perbedaan antara jantan dan betina.

   Pronounced. Males are much more brightly colored with iridescent blue-black throat and breast. Females are duller, predominantly olive-green and yellow, lacking the iridescent throat patch.

Tanda lapangan kunci

• Size and Shape. Small, slender bird with a long, thin, decurved bill. Active and quick.
• Male Plumage. Look for the striking metallic blue-black throat and upper breast, contrasting with a bright yellow belly and olive-green back. The iridescent throat can appear black in poor light.
• Female Plumage. Duller than males, with an olive-green head and back, and a plain yellow belly. Lacks the iridescent throat.
• Behavior. Observe its feeding behavior: hovering or perching at flowers to sip nectar. Its rapid, darting flight is also characteristic.
• Vocalizations. Listen for its high-pitched, rapid, and often complex song, or its sharp 'chip' call.

Jelajahi Olive-backed Sunbird