Summon Nature’s Ally
At 1st level, the animal speaker adds summon nature’s ally I to his bard spell list and bard spells known as a 1st-level spell. At 4th level (when he gains access to 2nd-level spells) he adds summon nature’s ally II to his spell list and spells known as a 2nd-level spell, and so on every 3 levels thereafter, until 16th level when he adds summon nature’s ally VI to his 6th-level spell list and spells known.