英语听力：自然百科 大迁徙之繁衍生息 Need to Breed—4

 An egg tumbled from the nest is fair game for Johnny rook. He'll soon have his own clamoring brood to look after. 

On another stretch of beach, the shoreline quakes with desperate battles to dominate. The stakes are unimaginably high. Only a privileged few elephant seal bulls will become beachmasters, controlling harems of dozens of females and reproducing abundantly. This is no place for a young male to stick his nose in. 

Usually trumpeted¹ warnings make challengers back off, but not all.

1 trumpeted   

大声说出或宣告（trumpet的过去式与过去分词形式）

参考例句：

• Soldiers trumpeted and bugled. 士兵们吹喇叭鸣号角。
• The radio trumpeted the presidential campaign across the country. 电台在全国范围大力宣传总统竞选运动。