Nest provisioning and diet of nestling Yellow-rumped Tinkerbird Pogoniulus bilineatus

The frequency with which birds deliver food to their young varies based on nestling begging rates, time of day and parental contribution. In monogamous species, both males and females invest substantial time and energy in feeding their offspring. Here, we describe the diet and feeding rate of nestlings by each parent in Yellow-rumped Tinkerbird (<i>Pogoniulus bilineatus). </i>We assessed feeding rate and diet of <i>Pogoniulus bilineatus</i> by videotaping nest visitation of both parents, recording daily from 05:00 to 18:00 for eight days by using a Bushnell Trophy Cam Essential E2 HD. Two-hundred and fifty-six video clips were examined. Daily diet of <i>P. bilineatus </i>nestlings<i> </i>constituted both insects and fruit. We also show that both parents took part in the feeding of nestlings at a <i>P. bilineatus </i>nest.

鸟类向幼鸟递送食物的频率会根据雏鸟乞食率、当日时段以及亲鸟投入情况发生变化。在单配制鸟类中，雌雄亲鸟均会投入大量时间与能量抚育后代。本研究针对黄腰小鵙鶲（Yellow-rumped Tinkerbird，学名*Pogoniulus bilineatus*），描述其双亲各自投喂雏鸟的食性与饲喂频率。我们采用Bushnell Trophy Cam Essential E2高清摄像机，连续8天每日5:00至18:00录制双亲的巢内造访行为，以此评估该物种的饲喂频率与雏鸟食性。共检视256段视频片段。黄腰小鵙鶲雏鸟的每日食物来源涵盖昆虫与果实两类。同时证实，该物种的巢内育雏行为由双亲共同参与。