29.On the other hand,when it comes to substantive--particularly behavioral-information,crows are less well known than manycomparably common species and,for that matter,not a few quite uncommon ones:the endangered California condor,to cite one obvious example.
(特殊结构for that matter)
另一方面,当涉及实质性的,特别是行为方面的信息时,乌鸦就不如许多比较而言很普通的鸟类那样为人所知;而且,也不如许多很不寻常的鸟类,举一个明显的例子,如像濒危的加利福尼亚大秃鹫那样为人所知。
分句1. when it comes to substantive--particularly behavioral-information
分句2. crows are less well known than many comparably common species and, for thatmatter,not a fewquite uncommon ones:the endangered California condor,to cite one obvious example.
1和2是并列, 分句1是时间状语,2是主句,其中包含插入语结构 以及冒号连接的解释说明的成分