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在“鸟綱”一章中可以实行大量的课外工作,兹列举一些比较容易实行的例子在下面: 一.用野鸟作实验首先要建造鸟室和鸟笼,鸟笼可从市上购买,也可自己做。鸟是喜欢攀绿和棲息在树上的,因此在鸟室和鸟笼内要设置棲木,其下的底板应该是活动的。在底板上撒以厚约一厘米的清潔干砂。把该鸟所爱吃的食物放1—2羹匙到食槽里。并在水槽中注入水分。食槽和水槽悬挂在鸟室和鸟笼内或放在底板上。然后把捕捉到的鸟放在里面。所用的鸟应该是習惯于监禁生活的。根据地区不同,所采用的鸟也不同。我们这里(上海)通常用白头翁、黄雀、芙蓉、阿苏兒、八哥、麻
A great deal of extracurricular work can be done in the chapter “The Aves.” Here are some examples that are relatively easy to implement. Below are some examples: First, to experiment with wild birds, you must first build a birdhouse and a bird cage that can be purchased from the market, You can also do it yourself. Birds prefer to climb green and perch in the trees, so habitat is to be provided in the birds’ room and in the cage, and the floor beneath them should be active. Sprinkle on the floor with a clean about one centimeter of dry sand. Put 1-2 tablespoons of food the bird loves to trough. And in the sink into the water. Slots and sinks hang in birdhouses and cages or on the floor. Then catch the bird on the inside. The birds used should be accustomed to imprisonment. Depending on the area, the birds used are different. We here (Shanghai) usually Pulsatilla, Carduelis, Hibiscus, Asu children, starling, hemp