笼养冠斑犀鸟繁殖生态的初步观察

Preliminary Observation on Anthracoceros coronatus Breeding Ecology in Captivity

2002～2004年通过对笼养冠斑犀鸟的繁殖生态进行观察,结果表明:冠斑犀鸟的发情期为3月中旬至4月初,求偶的追求者为雌鸟,雌鸟占据选巢营巢主导地位,从入巢到破巢的整个营巢期雌鸟始终把自己封闭在巢洞内,雄鸟担负了运送巢料和食物的所有任务直到雌鸟出巢,出巢后幼鸟在未具有觅食能力前,绝大部分的哺育任务仍由雄鸟承担.冠斑犀鸟的繁殖封巢期为89.0±12.99天,首次营巢的时间较长达15天左右,从第二年起营巢时间缩短为3天,孵化期为25.25±3.86天,育雏期为45.75±2.87天,繁殖成功率为100%.繁殖期除了人工投料外,冠斑犀鸟仍可从生态园中获得多种食物,以满足幼鸟的生长需要.

Through observation of malabar pied hornbill＇s breeding ecology from 2002 to 2004, the result showed that： The oestrus time turned out from March to April. The female played sex initiative, major part to choose and build up their nest, and kept on lie in the nest till break out the nest. During this period, the male took up the food conveying. After the female breaking out the nest, the male also put up breasting. The time was about 89.0±12.99 days. The first time to building up nest was about 15 days, but it reduced to 3 days from second year. The time for hatching was about 25.25 ± 3.86 days while the time for breasting reached 45.75 ± 2.87 days. The percent of breeding rate reached 100%. During breeding time, the food diversity was high. Excepting for food put in artificially, they could gain several kinds of food from the bird garden for the infant＇s growing inquiring.