湖北兴山县龙门河地区灰林(即鸟)繁殖习性

The Preliminary Study on Breeding Habit of Grey Bushchat at Xingshan County,Hubei

2004年5月-2005年7月，在湖北省兴山县龙门河村，对灰林[即鸟]（Saxicola ferrea）的繁殖习性进行了初步研究。研究结果显示，灰林[即鸟]在湖北兴山龙门河地区的繁殖时间为4月中旬至7月下旬。主要在农田边、公路旁、河岸边、山间小路旁等山坡草丛中营巢，巢址选择在牲畜较少光顾的、较陡的土坡上，上方往往有茅草等遮挡，较为隐蔽。筑巢工作全部由雌鸟承担，一般需要5—7d即可完成。雌鸟每天产一枚卵，产卵时间一般在清晨。窝卵数5枚（n=15），第4枚卵产出后即开始孵化，孵卵工作全部由雌鸟承担。雌鸟的孵卵行为有明显的节律性。孵化期13—14d。雏鸟晚成性，雌雄共同育雏，育雏期12-13d。雏鸟离巢前体重有所下降。

Breeding habit of Grey Bushchat （Saxicola ferrea ）was preliminarily observed at Longmenhe Village of Xingshan County, Hubei during breeding season of 2004 and 2005. Grey Bushchat breed from the middle of April to the end of July. Their nests were built at the top position of steep slope baside the farmland, road, riverside and footpath and covered by grass and shrubs. Nest was built by female and it took 5 to 7 days to build a nest. The clutch size was 5 （n = 15）and one egg was laid each day in early morning. However, female started to incubate when she gave 4 eggs. The duration of incubation was 13- 14 days and only female took the duty. Nestlings were altricial and were fed by their parent for 12 - 13 days before they came out of the nest.