Source: Races of Faerûn
Your ability to speak with animals has allowed you to befriend an animal as a permanent ally.
Benefit: 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.
Special: 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.