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Notes on moult in Crested Francolin, Francolinus Sephaena

机译:凤头弗兰科林,弗兰科林努斯·塞法纳的换羽笔记

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摘要

Very few published data exist on moult for the genus Francolinus (Hall 1963). Mentis (1973) showed that in Greywing Francolins, Francolinus africanus, and Redwing Francolins, F. levaillantoides, moulting birds could be found in any month, but that most active primary moult was post-breeding, peaking from January to April. Breeding was from July to August and from January to February. This note describes the moult of Crested Francolin, F. sephaena. Live specimens of Crested Francolin were examined as part of a wider field research project conducted on the farm La Boheme in the Rustenburg district (20 deg 50 min S, 26 deg 58 min E) of South Africa. In total, 55 adult francolins were trapped, ringed and released during 1984 and 1985. No apparent differences were observed between male and female moult patterns. Of 42 francolins examined during the period March to May, 20 (48 percent) renewed primary and 23 (54 percent) secondary wing feathers. Only three birds were in secondary moult without primary moult, which showed a high incidence of simultaneous moult (87 percent). Eighteen (43 percent) showed active moult of the body feathers and five (12 percent) showed renewed rectrices from March to May.
机译:Francolinus属的蜕皮很少有公开的数据(Hall,1963年)。曼蒂斯(Mentis,1973)指出,在灰翅弗兰科林,非洲弗兰科林纳斯和红翅弗兰科林中,在任何一个月都可以发现蜕皮鸟类,但是最活跃的原生蜕皮是繁殖后,从一月到四月达到高峰。繁殖时间为7月至8月以及1月至2月。本笔记描述了凤头弗兰克林(F. sephaena)的蜕变。在南非鲁斯滕堡地区(南纬20度50分,东经26度58分)的La Boheme农场进行的更广泛的田野研究项目中,对凤头Francolin的活体标本进行了检查。在1984年和1985年之间,总共有55只成年的francolins被诱捕,振铃并释放。在3月至5月期间检查的42种Francolin中,有20种(48%)更新了初生的翼羽,有23种(54%)进行了二次翼羽的更新。仅三只鸟处于次要蜕皮而没有原发性换羽,这表明同时发生换羽的发生率很高(87%)。从三月到五月,有十八(43%)人的身体羽毛活跃蜕皮,有五个(12%)的人恢复了新羽毛。

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  • 来源
    《Ostrich》 |2002年第2期|共2页
  • 作者

    van Niekerk JH;

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  • 正文语种 eng
  • 中图分类 鸟纲;
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