價格：免費
檔案大小：17.2 MB
版本需求：需要 iOS 6.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
The American crow (Corvus brachyrhynchos) is a large passerine bird species of the family Corvidae. It is a common bird found throughout much of North America. American crows are the new world counterpart to the carrion crow and the hooded crow. Although the American crow and the hooded crow are very similar in size, structure and behavior, their calls are different. The American crow nevertheless occupies the same role the hooded crow does in Eurasia.
From beak to tail, an American crows measures 40–50 cm (16–20 in), almost half of which is tail. Mass varies from about 300 to 600 g (10 to 20 oz). Males tend to be larger than females. The most usual call is caaw-caaw-caaw.
The American crow is all black, with iridescent feathers. It looks much like other all-black corvids. They can be distinguished from the common raven (C. corax) because American crows are smaller and from the fish crow (C. ossifragus) because American crows do not hunch and fluff their throat feathers when they call.
American crows are common, widespread, and susceptible to the West Nile virus, making them useful as a bioindicator to track the virus's spread. Direct transmission of the virus from American crows to humans is unheard of and unlikely.
App Features:
- 70 + amazing sounds available!
- Alarm settings
- Loop & overlap sounds to create new ones
- Record Your Own sounds feature available
- Star your favorites
- Make these sounds your ringtone or alert sounds
Check it out now, your phone will thank you!!!
支援平台：iPhone, iPad