Arctic Tern vs Cockatiel
Sterna paradisaea so với Nymphicus hollandicus
Side-by-Side Comparison
| Thuộc Tính | Arctic Tern | Cockatiel |
|---|---|---|
| Tên Khoa Học | Sterna paradisaea | Nymphicus hollandicus |
| Bộ | Charadriiformes | Psittaciformes |
| Họ | Laridae | Cacatuidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | 34,0 cm (13.4 in) | 32,0 cm (12.6 in) |
| Chiều Dài Sải Cánh | 80,0 cm (31.5 in) | 40,0 cm (15.7 in) |
| Khối Lượng | 110,0 g (3.88 oz) | 90,0 g (3.17 oz) |
| Chế Độ Ăn | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Seeds, grain, berries, and plant material. Forages on the ground in open areas. In captivity, … |
| Số Trứng | 2-3 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Không
Arctic Tern only
Cockatiel only
Arctic Tern
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
Cockatiel
Open arid and semi-arid habitats including scrubland, farmland, and woodland near water in Australia.
Song & Call Comparison
Arctic Tern
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
Cockatiel
A loud, whistled 'weet' or 'weeeet'. Males whistle a melodic series; contact call is a high nasal 'ny'. Capable of mimicry in captivity. Song is relatively simple but pleasant.
Geographic Range & Migration
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Cockatiel
Interior of Australia, generally avoiding coastal areas. The second most popular pet bird worldwide.
Tình Trạng Bảo Tồn
Arctic Tern
Cockatiel
How to Tell Them Apart
Arctic Tern
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red bill
Cockatiel
Wild-type males are grey with white wing patches, a yellow face, and bright orange cheek patches. Females are duller with barred tail undersides. Many captive color mutations exist.
Short, curved, grey bill
Key Differences
- • Weight: Cockatiel (90g) vs Arctic Tern (110g)
- • Length: Cockatiel (32 cm) vs Arctic Tern (34 cm)
- • Wingspan: Cockatiel (40 cm) vs Arctic Tern (80 cm)
- • Family: Cockatiel (Cacatuidae) vs Arctic Tern (Laridae)
- • Diet complexity: Arctic Tern has a more specialized diet
About These Birds
Arctic Tern
The Arctic tern holds the record for the longest known migration of any animal, traveling roughly 70,000 km annually from Arctic to Antarctic and back. Over its 30-year lifespan, it may fly the equivalent of three round trips to the Moon. This remarkable bird experiences more daylight than any other creature on Earth.
Cockatiel
The cockatiel is the smallest member of the cockatoo family and one of the most popular pet birds globally. These gentle, intelligent parrots can learn to whistle tunes and mimic sounds. Wild cockatiels are nomadic, traveling in flocks following food and water availability across the Australian outback.