The mount sheet provides a record for your mount's stats and inventory. Mounts can only carry mount equipment. Items such as Saddle bags provide space to place additional items but they can take a lot of space.
On the top line, beside the word Mount: Write the creature type and the name of the mount.
The three circles below that are hunger. A mount will consume 3 mice rations before they are full and will loose hunger points after more tiring than normal actions. After a long rest, the mount will be hungry again. A mount will gain the Hungry condition for each day that they are not fed.
The rest can be filled out based on details provided by the mount type you own, such as these example below.