My bunny Lisa that is 3 turning 4 this year so I gave her 1/4 pellets every night and I left her in her bedroom then I came back 5 minutes later and she was choking yellow stuff from her mouth and nose so I did the heimlich maneuver because one of my bunnies did this and it saved them but when I put her down she put her nose in the air and more can out she still sounded weird then lay in a ball started falling to the side and I picked her up she went limp unresponsive started kicking and passed away all in 7 minutes I wish I could've saved her