Sadly, I seem not to be able to download the offline packs. Otherwise very good.
I like it, especially "Your Observation" is useful for researchers and birders to make their records. Great works, thanks
Beautiful work Lot of nice pictures and interesting information about the wild birds in Vietnam as well as Southeast Asia. Thanks.
Data offline: download pictures and souds of birds
All-in-one travel guide which helps tourists explore Viet Nam freely and handily
HKcBirds: Common Birds of Hong Kong — Birds of Hong Kong in your hands!