Ali bin Abi Talhah narrates from Sayyiduna Ibn Abbas (may Allah be pleased with them both): When a muhrim kills any game, judgement is passed for its like. If he has killed a gazelle or the like of it, the muhrim owes a goat, which he will slaughter in Makkah. If the muhrim does not find a goat, then he must feed six needy people; and if food is not available either, then he must fast three days. If he kills a stag or the like of it, then the muhrim owes a cow; if a cow is not available, then the food of twenty needy people; and if food is not obtainable, then twenty days of fasting. If he kills an ostrich, a wild ass or something like it, then the muhrim owes the sacrifice of a camel; if he does not find it, then the food of thirty needy people; and if there is no food, then fasting thirty days. The food is one mudd each, enough to satisfy them and fill their stomachs. This narration and the ones before it require (that these be done) in order.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9900