Wingspan Europe's winter season changes how you value bird cards throughout the entire game. Winter scoring requires birds with white powers — the powers that activate at the end of the round. Building a strong winter bird collection means acquiring appropriate white-power birds in summer and autumn when they become available.

The tuck mechanic in European birds creates a cascade effect in winter. A bird that tucks cards when other birds lay eggs interacts with the winter scoring mechanic in ways that create substantial point swings. Understanding that certain European birds are specifically designed for winter optimization changes their draft value significantly.

For players adding Oceania alongside Europe: the Oceania birds include some of the best winter-activation birds in the card pool. Mixing expansions creates a richer winter scoring ecosystem than either expansion provides alone.