Auckland Teal vs Greater White-fronted Goose
Anas aucklandica dibandingkan dengan Anser albifrons
Side-by-Side Comparison
| Atribut | Auckland Teal | Greater White-fronted Goose |
|---|---|---|
| Nama Ilmiah | Anas aucklandica | Anser albifrons |
| Ordo | Anseriformes | Anseriformes |
| Famili | Anatidae | Anatidae |
| Status Konservasi | Near Threatened | Least Concern |
| Panjang | — | — |
| Rentang Sayap | 27,0 cm (10.6 in) | 81,6 cm (32.1 in) |
| Berat | 522,25 g (18.42 oz) | 2471,0 g (87.16 oz) |
| Diet | -- | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … |
| Ukuran Sarang | 1-6 | 3-9 |
| Population Trend | — | — |
Habitat Comparison
Habitat Bersama
Auckland Teal only
None
Greater White-fronted Goose only
Auckland Teal
Restricted to predator-free islands of the Auckland Islands subantarctic group (Adams, Disappointment, Ewing islands). Inhabits dense tussock grassland, scrub, and freshwater streams.
Greater White-fronted Goose
Breeds on Arctic and subarctic tundra and peatlands. Winters on estuaries, agricultural fields, freshwater marshes, and flooded meadows across Europe, Asia, and North America. One of the most widespread geese.
Song & Call Comparison
Auckland Teal
Female gives a short, nasal quack; male produces a barely audible high note. Nearly flightless; extremely quiet and seldom vocal; calls are reduced even compared with other flightless island teals.
Greater White-fronted Goose
A loud, laughing 'kow-lyuk' or musical 'wah-wah'. Gives a distinctive high-pitched yodeling quality lacking in Greylag. Highly vocal in large winter flocks.
Geographic Range & Migration
Auckland Teal
Greater White-fronted Goose
Breeds in the potholes region of the northern Great Plains; winters in the southern United States and along the Gulf Coast.
Status Konservasi
Auckland Teal
Greater White-fronted Goose
How to Tell Them Apart
Auckland Teal
Dark chocolate-brown plumage; males have iridescent dark green head and white eye-ring. Females dark brown with white eye-ring. Near-flightless. Iridescent speculum. Flightless wings. Auckland Islands endemic.
Greater White-fronted Goose
Brown-gray body with white forehead patch bordered by white band at bill base. Underparts with bold irregular black bars on belly. Orange bill; orange-yellow legs. Juveniles lack white front and …
About These Birds
Auckland Teal
A tiny flightless teal with dark brown plumage and a green speculum. Endemic to the Auckland Islands subantarctic group. Wings are reduced, making it completely flightless. Survives only on predator-free islands. Feeds mainly on invertebrates along freshwater streams.
Greater White-fronted Goose
A medium-large goose with a white forehead patch, orange bill, grey-brown plumage, and variable black barring on the belly. Widespread and numerous; one of the most abundant geese in the world. Breeds across the high Arctic; winters in a wide range of temperate wetland and agricultural habitats.