Cara mengidentifikasi Crimson Sunbird

Untuk mengidentifikasi Crimson Sunbird (Aethopyga siparaja) 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

11-13 cm (excluding elongated tail feathers of male)

Bentang sayap

15-17 cm

Berat

6-10 g

Ciri fisik untuk diperiksa

1. 1

   Bulu

   Warna dan pola bulu keseluruhan.

   Adult male: Forehead, crown, and nape iridescent metallic green. Mantle, back, and rump deep crimson. Uppertail-coverts iridescent metallic blue. Wings dark brown. Tail black with metallic blue sheen, central tail feathers elongated and pointed. Underparts crimson, becoming olive-yellow on belly and vent. Adult female: Upperparts olive-green, often with a yellowish wash on rump. Underparts dull yellowish-olive, paler on belly. Wings and tail dark brown, tail often with faint white tips on outer feathers. No elongated tail feathers.

2. 2

   Bentuk paruh

   Bentuk dan warna paruh, tanda lapangan kunci.

   Long, slender, decurved (downcurved) black bill, adapted for probing flowers.

3. 3

   Warna mata

   Warna iris dan tanda khas di sekitar mata.

   Dark brown

4. 4

   Warna kaki

   Warna kaki dan jari.

   Dark brown to blackish

5. 5

   Ciri pembeda

   Ciri menonjol yang membedakan spesies ini.

   Males are unmistakable with their brilliant crimson and metallic green. Females are more subtly colored but can be identified by their small size, slender decurved bill, and active feeding behavior. The elongated central tail feathers of the male are a key feature.

6. 6

   Penampilan muda

   Bagaimana yang muda berbeda dari yang dewasa.

   Juveniles resemble adult females, but are generally duller and more uniformly olive-green, often with a yellowish wash on the underparts. Young males gradually acquire patches of crimson and iridescent green as they mature.

7. 7

   Perubahan musiman

   Variasi bulu antara musim kawin dan tidak kawin.

   No significant seasonal plumage changes. Breeding and non-breeding plumages are essentially the same for both sexes.

8. 8

   Dimorfisme seksual

   Perbedaan antara jantan dan betina.

   Highly sexually dimorphic. Males are much more brightly colored with iridescent crimson and metallic green, and possess elongated central tail feathers. Females are duller, predominantly olive-green and yellowish, lacking the bright iridescence and elongated tail feathers.

Tanda lapangan kunci

• Male Plumage. Look for the striking combination of iridescent metallic green on the crown/nape and deep crimson on the back and underparts. The elongated central tail feathers are diagnostic.
• Female Plumage. Observe the overall olive-green upperparts and dull yellowish-olive underparts. Note the lack of bright colors and elongated tail feathers. The slender, decurved bill is key.
• Bill Shape. Both sexes possess a long, thin, and distinctly decurved black bill, perfectly adapted for nectar feeding.
• Behavior. Watch for their active, darting movements, often hovering briefly at flowers. They are constantly on the move.
• Vocalizations. Listen for their high-pitched, rapid 'chip-chip-chip' songs and sharp 'chip' calls.

Jelajahi Crimson Sunbird