Animal Friends( Races of Faerûn, p. 161)
Your ability to speak with animals has allowed you to befriend an animal as a permanent ally.
You gain up to 2 HD of animal friends, just as if you had cast animal friendship with a caster level of 1st. The animals befriended must be native to the area around your home. If these animal friends are lost, you may replace them after one month.
You may take this feat multiple times. Each time you take it, you gain another 2 HD of animal friends. These HD do not stack with any previous times you took this feat; therefore you cannot have an animal companion with more than 2 HD.