Wingspan's egg-laying economy creates one of the game's most powerful exponential effects. A player who builds a strong grassland early — five or six birds with high egg capacity — lays more eggs per turn than the food tokens they spend. This surplus enables bird playing without depleting the egg reserve needed for bird habitat costs.

The egg count at game end scores one point per egg, which means unspent eggs are not wasted. Building egg surplus throughout the game creates both a scoring buffer and a bird-playing resource that maintains engine development velocity. The tension between spending eggs on bird habitat costs and preserving them for end-game scoring is the grassland's primary strategic decision.

For players developing a grassland-heavy strategy: count your projected end-game egg total at the start of the final round. If your projected total is lower than three per bird in the grassland, spending the round laying rather than playing a new bird often generates more total points.