Natural Attacks Most creatures possess one or more natural attacks (attacks made without a weapon). These attacks fall into one of two categories, primary and secondary attacks. Primary attacks are made using the creature's full base attack bonus and add the creature's full Strength bonus on damage rolls. Secondary attacks are made using the creature's base attack bonus –5 and add only 1/2 the creature's Strength bonus on damage rolls. If a creature has only one natural attack, it is always made using the creature's full base attack bonus and adds 1-1/2 the creature's Strength bonus on attack rolls. This increase does not apply if the creature has multiple attacks but only takes one. If a creature has only one type of attack, but has multiple attacks per round, that attack is treated as a primary attack, regardless of its type. Table 3–1 lists some of the most common types of natural attacks and their classifications.
Now take the example of the Velociraptor animal companion with a bulls strength.
BAB +1Attack: 2 Talons 1d6, Bite 1d4
Str 15
So his full attack would be
Talon +4 (1d6+3), Talon -1 (1d6+3), Bite -1 (1d4+1)
Is that right?