Amber sleuth has another golden oldie

Eggshell - At 30 million years, it could be the earliest evidence of a hummingbird....

  Eggshell - At 30 million years, it could be the earliest evidence of a hummingbird in the Americas In the past year; a Corvallis entomologist has discovered the oldest known bee, mushroom and a chemical-spewing beetle. Now, George Poinar has come up with another ancient discovery: the oldest vertebrate eggshell, most likely that of a hummingbird. The quarter-inch-long eggshell -- its chick hatched through the egg's missing top -- is trapped in amber, or fossilized tree resin, from the Dominican Republic that is about 30 million years old. If it's indeed a hummingbird shell, it would represent the oldest evidence of the tiny bird in the Americas.