Owls Guru is an excellent collection with photos and info.
You can view details, zoom photos, share photo by email, save bookmarks for later viewing.
Now also from you Apple Watch with the extension included.

- Beautiful photos, no internet required
- Test your knowledge and have fun with puzzle game
- Share by Facebook, Tweeter or mail
- Search in database
- Favorite list
- View photos in slideshow mode
- Beautiful user interface