red siskin การใช้
- Red siskins been protected in Venezuela since the 1940s.
- The red siskin is about 10 cm long.
- The red siskin is found in open country, forest edges and grassland with trees or shrubs.
- Scientists have discovered a previously unknown population of red siskins, a bird feared to be nearing extinction in the wild.
- Breeders discovered that the red siskin could mate with the canary, Braun said Thursday, providing a bright color to the formerly drab songbird.
- The American Federation of Aviculture is engaged in a red siskin recovery project, attempting to breed a large enough captive population of the birds for the commercial market.
- Braun said the research team was conducting a survey of birds in little-studied Guyana _ which neighbors Venezuela _ when they came across a population of several thousand red siskins.
- It was developed as a cross between another type of finch, the now endangered Venezuelan red siskin ( " Spinus cucullata " ), and a yellow domestic canary ( " Serinus canaria " ).
- While wild canaries are a yellowish-green colour, domestic canaries have been selectively bred for a wide variety of colours, such as yellow, orange, brown, black, white, and red . ( The colour red was introduced to the domesticated canary through hybridisation with the red siskin, a type of South American finch .)