Build a birdcage , feed the bird cooked Monster Meat. This will yield one Egg. The Egg can be given the Pig King in exchange for one Gold Nugget. If the Monster Meat from Hounds isn't enough, additional Monster Meat can be obtained in various ways. One of the easiest ways is roaming the Marshes and cleaning up after battles between Tentacles, Merms and Spiders (this can easily be combined with collecting Reeds and Tentacle Spikes).