Come identificare Chinese Goose

Per identificare correttamente Chinese Goose (Anser cygnoides domesticus), controlla ciascuna di queste caratteristiche. Gli uccelli possono essere complicati da riconoscere, perché comportamento, habitat e canto spesso confermano ciò che una sola foto non può.

Dimensioni a colpo d'occhio

Lunghezza

81-94 cm (32-37 in)

Apertura alare

130-160 cm (51-63 in)

Peso

3.5-5.0 kg (7.7-11.0 lbs), with some individuals reaching up to 10 kg (22 lbs)

Caratteristiche fisiche da controllare

1. 1

   Piumaggio

   Colorazione e disegno generale del piumaggio.

   Typically comes in two main color varieties: 'Brown' (or 'Grey') and 'White'. Brown varieties resemble the wild Swan Goose, with a dark brown stripe running from the crown down the back of the neck, contrasting with lighter brown-grey body plumage, and a creamy-white belly. White varieties are entirely white. Both have a distinctive dark brown or black knob at the base of the bill.

2. 2

   Forma del becco

   Forma e colore del becco, un segno di campo chiave.

   Strong, wedge-shaped bill, typically black in the brown variety and orange in the white variety, with a prominent, fleshy knob at the base, which is more pronounced in males and during the breeding season.

3. 3

   Colore degli occhi

   Colore dell'iride e segni distintivi sugli occhi.

   Dark brown

4. 4

   Colore delle zampe

   Colore di zampe e piedi.

   Orange to reddish-orange

5. 5

   Caratteristiche distintive

   Tratti distintivi che separano questa specie.

   The most distinctive feature is the large, prominent basal knob on the upper mandible, especially noticeable in ganders. They also possess a more upright, swan-like posture compared to other domestic geese, and a long, graceful neck.

6. 6

   Aspetto giovanile

   Come i giovani si differenziano dagli adulti.

   Goslings are covered in down, typically yellowish-grey or brown, with a darker stripe down the back. The knob on the bill is absent or very small and develops as they mature.

7. 7

   Cambiamenti stagionali

   Variazione del piumaggio tra stagione riproduttiva e non.

   The bill knob of ganders becomes more prominent and swollen during the breeding season. Otherwise, plumage does not undergo significant seasonal changes.

8. 8

   Dimorfismo sessuale

   Differenze tra maschi e femmine.

   Males (ganders) are generally larger than females (geese) and have a more pronounced knob on their bill, particularly during the breeding season. Otherwise, plumage is similar between sexes.

Segni di campo chiave

• Bill Knob. Look for the prominent, fleshy knob at the base of the upper mandible. This is the most definitive field mark, present in both sexes but larger in males.
• Posture. Observe its posture. Chinese Geese typically hold their necks in a very upright, almost swan-like manner, giving them an elegant appearance.
• Plumage Color. Note the plumage. They come in two main varieties: 'Brown' (grey-brown body with a distinct dark brown stripe down the back of the neck) or 'White' (entirely white). The brown variety closely resembles its wild ancestor.
• Vocalizations. Listen for their distinctive, loud, trumpet-like honks, which are higher-pitched and more resonant than many other goose breeds.
• Leg and Bill Color. Check the leg color (orange to reddish-orange) and bill color (black in brown varieties, orange in white varieties, always with the knob).

Esplora Chinese Goose