布鲁斯·巴格·米尔在他1999年的《生物的丰富性》一书中记载(71、209 - 210页)。
In his 1999 book, Biological exuberance, Bruce Bagemihl PhD documents (p. 71, 209-210) that.
“它们几乎会吃大小适中的每一类脊椎动物,但它们更偏爱吃禽类和哺乳动物。”曾合作撰写了350页研究报告的美国地质勘探局生物学家戈登·瑞达说。
"They will eat almost every vertebrate of the right size, but they mostly prefer birds and mammals," said USGS biologist Gordon Rodda, who co-authored the 350-page study.
这两只雌鸟会各自产下一枚受过精的卵,并且随机扔掉一枚(《生物通讯》,第4卷,第323页)。
Both females will have laid a fertilised egg and randomly shunted one aside (Biology Letters, vol 4, p 323).
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