OBSERVATIONS AT A NEST OF CUCKOO-ROLLER LEPTOSOMUS DISCOLOR
OBSERVATIONS AT A NEST OF CUCKOO-ROLLER LEPTOSOMUS DISCOLOR
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DOI：
10.1111/j.1474-919x.1967.tb04015.x
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发表时间：
1967-01-01
期刊：
影响因子：
2.1
通讯作者：
FORBESWATSON, AD
中科院分区：
文献类型：
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作者：
FORBESWATSON, AD
巢腔中有2只雏鸟。discolor，发现于科摩罗群岛在1965年10月，被描述。这显然是第一次观察到筑巢。鸟巢是在一个天然的洞穴中的树木生长在轻次生林。这两个雏鸟仍然有痕迹，他们原来的白色羽绒，即使他们几乎完全羽毛。除了后冠上有两簇厚厚的白色外，羽毛看起来很像成年雄性。在巢里发现了蛋壳的碎片。他们认为，原来的蛋是相当圆的，一个苍白的无标记的奶油浅黄色，略有光泽，测量约46[±]5x37 [±] 5毫米。在6个小时的观察中，在鸟巢的鸟类进行了5次访问，并带来了6个变色龙（没有看到其他食物）。雌蚁喂养幼蚁，但雄蚁陪伴着她，除了一次之外，她不进入巢穴。这次访问的细节是完整的，特别是显着的驯服的女性。描述了年轻人的治疗显示和可能的捕食者提到。有几个电话被描述，有些显然是第一次。大多数猎物似乎都是在地面以上捕获的。证据表明，鸟类是一夫一妻制，而不是一妻多夫的建议。
A nest-cavity with 2 nestlings of L. discolor, found in the Comoro Islands in Oct. 1965, are described. This is apparently the 1st time that nesting has been observed. The nest was in a natural cavity in a tree growing in light secondary forest. Both nestlings still had traces of their original white down, even though they were nearly fully-feathered. Apart from 2 thick tufts of white down on the hind-crown, the plumage appeared very like that of the adult male. Fragments of egg-shell were found in the nest. They suggest that the original eggs were rather rounded, of a pale unmarked creamy-buff, slightly glossed, measuring about 46[plus or minus]5x37 [plus or minus] 5 mm. During 6 hours observation at the nest the birds made 5 visits and brought 6 chameleons (no other food was seen). The female fed the young, but the male accompanied her. She did not enter the nest, except on one occasion. Details of this visit are given in full, being particularly remarkable for the tameness of the female. The treat-display of the young is described and possible predators mentioned. Several calls are described, some apparently for the 1st time. It seems likely that most prey is caught above ground-level. The evidence suggests that the birds are monogamous, not polyandrous as has been suggested.