Come identificare Little Egret

Per identificare correttamente Little Egret (Egretta garzetta), 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

55-65 cm (22-26 in)

Apertura alare

88-106 cm (35-42 in)

Peso

350-550 g (12-19 oz)

Caratteristiche fisiche da controllare

1. 1

   Piumaggio

   Colorazione e disegno generale del piumaggio.

   Entirely pure white plumage. In breeding season, it develops two long, delicate nuchal plumes (aigrettes) extending from the back of the head, and lacy scapular plumes on its back.

2. 2

   Forma del becco

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

   Slender, pointed, and entirely black.

3. 3

   Colore degli occhi

   Colore dell'iride e segni distintivi sugli occhi.

   Iris is pale yellow.

4. 4

   Colore delle zampe

   Colore di zampe e piedi.

   Black legs with conspicuously bright yellow feet. The yellow coloration on the feet can extend slightly up the lower tarsus in some individuals, especially during breeding.

5. 5

   Caratteristiche distintive

   Tratti distintivi che separano questa specie.

   Combination of all-white plumage, black bill, black legs, and bright yellow feet. The nuchal plumes and lacy scapular plumes during breeding are also highly distinctive.

6. 6

   Aspetto giovanile

   Come i giovani si differenziano dagli adulti.

   Juveniles resemble non-breeding adults but may have duller, greenish-yellow feet and sometimes a slightly duller bill. They lack the ornamental plumes of breeding adults.

7. 7

   Cambiamenti stagionali

   Variazione del piumaggio tra stagione riproduttiva e non.

   During the breeding season (typically spring and early summer), adults develop two long, slender nuchal plumes (up to 20 cm long) and numerous lacy scapular plumes on their back and breast. The yellow on the feet may become more intense. Outside the breeding season, these plumes are absent, and the plumage is plain white.

8. 8

   Dimorfismo sessuale

   Differenze tra maschi e femmine.

   Males and females are morphologically similar in plumage and size. Males may be slightly larger on average, but this is not a reliable field mark.

Segni di campo chiave

• Size and Shape. Medium-sized, slender white heron with a relatively long neck and legs.
• Plumage. Pure white body plumage at all times. Look for ornamental plumes during breeding season.
• Bill Color. Always black, slender, and pointed.
• Leg and Foot Color. Black legs with distinctive bright yellow feet. This is a crucial field mark.
• Breeding Plumes. In breeding season, look for two long, thin nuchal plumes extending from the back of the head and lacy scapular plumes on the back.
• Foraging Behavior. Active and agile foraging, often running, foot-stirring, or wing-flicking in shallow water.

Esplora Little Egret