This mod is created to give people a reason to chop down trees. It will allow our survivors a chance at finding an egg as they engage in mass deforestation, giving them a reason to engage in a little eco-friendly log-rolling. If you're serious about survival, you'll do all you can to search for foodstuffs.

Each tree type has a varying chance of dropping an egg depending on the biome, and this change has been introduced to nearly all tree kinds.

The highest is a forest.
wild oaks or pines
planted oak and pine.
trees appropriate to each biome

The size has an impact as well; a mature tree is more likely to produce an egg than a sapling or immature tree.