The tough hull splits in two and the meat disappears into its mouth. Not all birds of this beak type eat large seeds, though. The American goldfinch, for example, loves thistle, or Nyjer.

The struggle is mainly about food -- different types of seeds -- and the availability ... survive favored the larger birds with deep, strong beaks for opening the hard seeds.

The beaks of albatrosses and penguins, compared to other, “normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ...

Birds captivate us with their stunning appearances and remarkable adaptations, and some species stand out for their exceptionally colourful beaks These beaks not only add to the beauty of nature ...