A hippogriff is a monster found on MM 52. It is also one of the three standard flying mounts, the other two being griffons and pegasi.

Hippogriffs have a carry load of 4000/6000.¹⁾

Eggs hatch in 5 months (roll d5 if found in lair). There is a 1% chance for a twin birth from a single egg. The born hippogriff is a fledgling for 6 months after birth. At 6 months of age, a period of intensive training must begin if the hippogriff is to be trained as a flying mount.

A hippogriff must rest 1 hour for every 3 hours flown, during which period it eats as if famished.

Upkeep is 250-500 gp/month, or half that during the fledgling stage. The exact amount is determined by the proportion of max hit points the hippogriff has compared to its possible minimum and max hit points. This pays for grooms, keepers, food, and special quarters.

Training takes d3+3 months. If training is broken for more than 2 days, the hippogriff's wild nature asserts itself and all progress is lost. During this time, the training character must spend at least two hours a day training with it.

The owner of the hippogriff might employ certain characters to take care of the hippogriff while the owner is away in order to avoid breaking the 2 day absence limit. They are as follows:

After 2 months of training, the hippogriff can be flown, but not fought from.

After 4 months of training, the hippogriff can be fought from in melee. At this point, the owner has gained the ability to fight from flying mounts in general, meaning they have gained an ability which is “transferable” to other flying mounts like griffons and pegasai.

After 6 months of training, missile weapons can be fired while mounted on the flying hippogriff. Similarly to the flying mount melee combat ability above, this ability is transferable to other flying mounts. Note that if less than 6 months was rolled on the d3+3 months for training time, this means that while additional training time may be needed beyond the d3+3 to achieve this flying ranged combat ability, the difference of time between the d3+3 and the 6 months need not be continuous; it can be broken up by stretches of time.

The egg value is 1,000 gp, and the fledgling value is 2,000 - 3,000 gp.²⁾

To determine fledgling value, d12*100 gp can be rolled, re-rolling 12s.

Alternatively, the DM can assign a value 2,000 - 3,000 gp with 50% of the value based on the hippogriff's rolled HP (HD 3 + 3) with relation to its minimum and maximum possible HP, and 50% of the value being based on how far along the fledgling is in its 6 month fledgling state (farther along being more valuable).^Ex