Come identificare Eurasian Dotterel

Per identificare correttamente Eurasian Dotterel (Eudromias morinellus), 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

20-24 cm

Apertura alare

57-64 cm

Peso

90-140 g

Caratteristiche fisiche da controllare

1. 1

   Piumaggio

   Colorazione e disegno generale del piumaggio.

   Breeding adults have a striking plumage: a broad white supercilium extending from the bill to the nape, a dark crown, a white breast band bordered by a narrow black line, a rich chestnut-orange belly, and dark flanks. The back is mottled brown and black. Non-breeding plumage is duller, with a plain brownish-grey breast and belly, and a less distinct supercilium. Juveniles resemble non-breeding adults but have a scaly appearance on the back and breast.

2. 2

   Forma del becco

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

   Short, straight, and relatively stout, dark grey to black.

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.

   Dull yellowish-green to olive-grey.

5. 5

   Caratteristiche distintive

   Tratti distintivi che separano questa specie.

   The broad white supercilium, white breast band, and rich chestnut belly in breeding plumage are highly distinctive. In flight, a narrow white wing-bar is visible.

6. 6

   Aspetto giovanile

   Come i giovani si differenziano dagli adulti.

   Juveniles are duller than adults, lacking the vibrant chestnut belly and distinct white breast band. Their upperparts are mottled brown with pale feather fringes giving a scaly look, and the underparts are buffish-white with some streaking on the breast.

7. 7

   Cambiamenti stagionali

   Variazione del piumaggio tra stagione riproduttiva e non.

   The striking breeding plumage is acquired in spring before migration to breeding grounds. After breeding, they molt into a duller, cryptic non-breeding (winter) plumage, which is predominantly brownish-grey above and whitish below with a less defined supercilium and no chestnut belly.

8. 8

   Dimorfismo sessuale

   Differenze tra maschi e femmine.

   Females are typically slightly larger and more brightly colored than males during the breeding season, a rare instance of reversed sexual dimorphism among birds. This is linked to their polyandrous breeding system.

Segni di campo chiave

• Breeding Plumage (Adult). Look for the broad white supercilium, dark crown, white breast band, and rich chestnut-orange belly. The back is mottled brown. This combination is unmistakable.
• Non-breeding/Juvenile Plumage. More challenging. Look for the overall plover shape, dull brownish-grey upperparts, and a less distinct pale supercilium. Juveniles have a scaly back pattern. The yellowish-green legs are a good clue.
• Behavior. Their tame nature, often allowing close approach, is characteristic. They forage with a distinctive 'stop-start' walk. During breeding, males are often seen incubating or tending chicks.
• Habitat. In breeding season, look in high-altitude, open, stony tundra or fell-field habitats. On migration, they can be found in open fields, short grasslands, or coastal areas.
• Call. Listen for the soft, plaintive 'pyu' or 'puit' call, especially when disturbed or in flight.

Esplora Eurasian Dotterel