You're looking for information on Angry Birds Seasons for Android, specifically a free download. Here's what I found:
Why Download Angry Birds Seasons for Android? angry birds seasons for android free download exclusive
Classic Rebirth: Fans of the series can also find most Seasons levels featured in the modern Angry Birds Reloaded. You're looking for information on Angry Birds Seasons
What is Angry Birds Seasons?
Holiday Episodes: Play through iconic chapters like "Trick or Treat" (Halloween), "Season's Greedings" (Christmas), and "Hogs and Kisses" (Valentine's Day). No Cloud Saves: Your progress stays on your device