Great Snipe
Gallinago media
Slightly bigger and stockier than Common Snipe, with a long and thick bill, heavily barred belly and contrasting upperwing pattern with dark underwings. Flushes at close range; escape flight is usually slow and short. Typically quiet and silent. Breeds in remote wet meadows or in mountain bogs where males lek (display together). Usually found at marshes on migration; autumn migrants make a direct nonstop flight to tropical African wintering grounds.
识别特征
At 26–30 cm (10–12 in) in length and a 42–50 cm (17–20 in) wingspan, adults are only slightly larger, but much bulkier, than the common snipe and have a shorter bill. The body is mottled brown on top and barred underneath. They have a dark stripe through the eye. The wings are broad, and a pale wingbar is visible in flight.<p>The voice is described as a faint yeah. Mating display calls of groups can be heard at long distances (more than 300 m (330 yd)) and sound like a mixture of firecracker wind-up xylophone sounds.
分类信息
The great snipe was described by the English naturalist John Latham in 1787 with the binomial name Scolopax media. The name of the current genus Gallinago is Neo-Latin for a woodcock or snipe from Latin gallina, "hen" and the suffix -ago, "resembling". The specific media is Latin for "intermediate", because this species is intermediate in size between the woodcock and the common snipe.
- 学名
- Gallinago media
- 命名信息
- (Latham, 1787)
- 目
- Charadriiformes
- 科
- Scolopacidae
- 属
- Gallinago
分布与栖息地
- 繁殖区
- PAL : subarctic to temperate meadows of nw Palearctic: w, n Scandinavia and e Poland through w Russia to Yenisei River (w Siberia)
- 非繁殖区
- AF : wet grassland of tropical and subtropical Sub-Saharan Africa
- 迁徙
- Complete migrants
行为
The birds are noted for their fast, non-stop flying capabilities over huge distances. They can fly up to 97 km/h (60 mph), with researchers finding little evidence of wind assistance. Some have been recorded to fly non-stop for 84 hours over 6,760 km (4,200 mi) at altitudes up to 8700 metres. Their wings are not especially aerodynamic, lacking pointed tips, and they typically do not stop to feed despite having opportunities. The birds instead rely on stores of fat.<p>At dusk during the breeding season, the males display at a lek (arena), standing erect with chest puffed and tail fanned out. They may jump into the air, and will produce a variety of rattles, clicks, buzzes and whistles while displaying. Three to four eggs are laid in a well-hidden nest on the ground.<p>These birds forage in soft mud, probing or picking up food by sight. They mainly eat insects and earthworms, and occasional plant material. They are difficult to see, being well camouflaged in their habitat. When flushed from cover, they fly straight for a considerable distance before dropping back into vegetation.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Semipalmated Sandpiper
Calidris pusilla
Small, grayish-brown sandpiper. Typically shows relatively short, blunt-tipped bill, but this varies across the breeding range: western populations are shortest-billed, eastern populations are longest, and females have longer bills than males! Also note blackish legs, although they can appear dull gray or greenish. In breeding plumage, fairly pale grayish brown, sometimes with brighter rusty cap and cheek. Nonbreeding is plain gray above and white below. Juveniles have attractive scaly pattern on upperparts, and variable coloration: usually grayish with some buffy areas, occasionally brighter rufous. Most similar to Western and Least Sandpipers. Western averages slightly larger and longer-billed, with brighter rufous on breeding adults and juveniles; nonbreeding birds paler but extremely similar to Semipalmated. Least Sandpiper is darker and browner. Breeds on high Arctic tundra. Migrates to South America for the winter; very rarely lingers in the U.S. past November, unlike Western Sandpiper. Usually found in flocks, sometimes in very large numbers. Prefers open mudflats, but also found in marshes and beaches.
Tumbes Hummingbird
Thaumasius baeri
A plain hummingbird found in dry forest and scrub in southwestern Ecuador and northwestern Peru. It is dull green with light gray underparts, a white spot behind the eye, and a thick, slightly curved bill. Some birds show very faint spots on the throat. Similar to Spot-throated Hummingbird, but throat markings are much less conspicuous or entirely absent. Ranges are also different; Tumbes Hummingbird is found only on the Pacific side of the Andes and does not reach the Marañon drainage.
Ash-colored Cuckoo
Coccycua cinerea
Nondescript and retiring cuckoo with a pale ashy-brown back and pale underparts. Note the thin white tail tips and red eyering and iris. An austral migrant. Usually found in dry woodlands, scrub, savannas, gallery forests, and also in the borders of humid moist forests in the nonbreeding season. The song is a series of “cow-w cow-w cow cow” notes.
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