中文摘要：

2013年4~7月,在陕西佛坪国家级自然保护区凉风垭海拔2050~2475 m区域发现了黑喉歌鸲（Luscinia obscura）8只雄鸟和2只雌鸟,之后在调查区域内发现2个巢,对其巢址特征和繁殖生态进行了初步观察和测量。黑喉歌鸲的2个巢都位于向阳、林冠稀疏、距水源较近的针阔混交林下的秦岭箭竹（Fargesia qinlingensis）丛林缘陡坡上的天然土洞内;巢口向上呈杯状,由竹叶、枯草、苔藓等编制而成,内无铺垫物。巢外底部垫有枯叶、干草等;2巢的巢外长径96.37 mm和104.36 mm、巢外短径91.86 mm和102.29 mm、巢外高47.35 mm和50.18 mm、巢内长径66.93 mm和70.30 mm、巢内宽径64.07 mm和65.54 mm和巢内深35.77 mm和36.37 mm;2巢的窝卵数均为5枚,平均卵重（1.91±0.05）g、卵长径（18.37±0.08）mm、卵短径（13.95±0.15）mm（n=10）;孵卵期为12d或13d,2巢孵化率均为60%（n=2）,雏鸟出飞率为50%（n=2）,育雏期11 d（n=1）。

英文摘要：

Two nests of a poorly-known rare species Blackthroat（ Luscinia obscura） were located in Foping National Nature Reserve and in breeding season of 2013（ April to July）. Nest characterists was measured,basic reproduction data of this birds were recorded by electronic caliper first time. Blackthroat built its nest in natural soil hole at the edge of bamboo forest over covered by coniferous forest and coniferous broadleaved forest at elevation ranging from 2 050 m to 2 475 m. The nest materials mainly were bamboo leaves,grass,and moss.The external length dimensions were 96. 37 mm and 104. 36 mm,width dimensions were 91. 86 mm and102. 29 mm with depth 47. 35 mm and 50. 18 mm; the internal length dimensions were 66. 93 mm and70. 30 mm,the internal width dimensions were 64. 07 mm and 65. 54 mm with depth 35. 77 mm and 36. 37 mm（ Table 1-2）,respectively. Mean clutch size was 5.00 ±0.00 eggs and eggs were 18.37 ±0.08 mm long,13. 95 ± 0. 15 mm wide（ n = 2）,weighted 1. 91 ± 0. 05 g（ n = 10）. Females were incharge of hatching eggesand incubation length is 12- 13 days. Hatching success was 60%（ n = 2） and survival rate was 50%（ n =2）. Growth of body weight and length of young birds was described by Logistic equation well（ Table 3）.