You can see the chick's beak moving inside the egg ... Get top local stories in San Diego delivered to you every morning. Sign up for NBC San Diego's News Headlines newsletter.

But have you ever wondered why so many birds have red beaks? In some cases ... If you get a chance to see the Green Magpie up close, odds are you’ll never forget its appearance or its harsh ...

“normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ostriches and emus and which has an ancestral bill-tip organ ...