Bird calls

I enjoy this app , mostly the compare 2 different bird at same time. When it comes to calling in birds, I sure would like to see added to this app a snippet of 3to5 birds on one call, like warblers robins added, etc. It sure would be less stressful on birds. I was on hike and this is what guide used, he made his own! And it worked!

RRM4649 about The Sibley eGuide, v1.7.1