Finches start to moult at around twelve weeks of age.燕雀大约在12个星期大小的时候开始换羽毛。Finches start to molt at around twelve weeks of age.燕雀大约在12个星期大小的时候开始换羽毛。In fact, the finches no longer look very finchlike at all.事实上, 这些达尔文雀的样子已...