This application (2013) is technically DEPRECATED and is no longer SUPPORTED by the author. The new (native) version of 2021 (free with in-app purchases) is located at: https://play.google.com/store/apps/details?id=en.ecosystema.birds

This version is saved in the store for the convenience of users who bought the application in the period 2013-2021. It can be restored on any smartphone linked to a Google account.

Description of the guide and list of bird species: http://ecosystema.ru/04materials/guides/mob/and/14birds.htm

Video review of the application: https://youtu.be/dmOHCf670jk

Ecosystem on FB: https://www.facebook.com/Ecosystema1994/