四川南充白颊噪鹛的繁殖行为观察

2009年2～6月,在四川省南充市市郊观察了白颊噪鹛(Garrulax sannio)的繁殖行为。结果显示,白颊噪鹛的营巢成功率为73.3%,影响其巢址选择的主要因素依次为巢位及巢的稳固因素、隐蔽因素、食物因素;孵化期亲鸟的离巢时间随着孵化天数的增加而减少,离巢次数随着孵化天数的增加而增加;育雏期亲鸟喂食频次随着雏鸟日龄增加而增加,且在日间各时段的喂雏次数不同,在7:01～10:00时和17:01～19:00时喂食频次最高,在6:30～7:00时和10:01～14:00时最低;育雏期雏鸟的外部形态变化明显,体长及外部器官的形态学参数可以用Logistic曲线方程很好地拟合,雏鸟体重和各器官的生长曲线在10.5日龄前呈"S"型;白颊噪鹛的繁殖成功率为23.1%。

Observation on the Breeding Habit of Garrulax sannio in Nanchong,Sichuan

The breeding habits of White-checked Laughing Thrush (Garrulax sannio) was studied during February to June of 2009 in the suburbs of Nanchong,Sichuan. The results showed that the nesting success rate of White-checked Laughing Thrush was 73. 3% ; the main factors which affected the nest-site selection from more important to less important were the location and stability of nests,concealment of nest,and food resource; Normal recess time was decreased as increased of hatching day in incubation; and the normal recess times increase as hatching days increasing. The frequency of feeding was increased with age of fledgling increasing in nestling period,and the feeding frequency varied within a day,the highest feeding frequency occurred in 7:01-10:00 and 17:01-19:00,the lowest did in 6:30-7:00 and 10:01-14:00. The morphology of fledgling changed greatly during incubation and the body mess,body length and some other morphological characters of it can well be described by the Logistic equation,the growing curves of weight and different organs are shaped as "S"for nestling less than 10.5-days old; The breeding success rate of White-checked Laughing Thrush was 23. 1% .