This beak is what sets it apart from the coots ... You can spot all the birds all year round on both the eastern and western coasts of Central America. It also makes its way up to Florida ...
Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds. Smaller finches with less-powerful beaks perished.
“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 ...