The raven entity would have the same Int as the "seed familiar," as Sejs put it.
Some basics:
CREATING A RAVEN ENTITY
“Raven entity” is an aquired template that can be added to any raven that is or once was a familiar (referred to hereafter as the familiar).
A half-dragon uses all the base creature’s statistics and special abilities except as noted here.
Size and Type: The raven entity is a Tiny Magical Beast with the Swarm subtype.
Hit Dice: A raven entity has Hit Dice equal to the level of the familiar's master. These Hit Dice are Magical Beast Hit Dice (d10).
Speed: 10 ft. (2 squares), fly 40 ft. (average)
Armor Class: The raven entity has a natural armor bonus equal to that of the familiar.
Attack: A raven entity uses the swarm attack. As a swarm, raven entities don't normally attack otherwise, and cannot grapple. The base attack bonus of a raven entity is equal to its Hit Dice.
Full Attack: A raven entity uses the swarm attack.
Damage: A raven entity's swarm attack deals damage appropriate for its hit dice:
Code:
Swarm HD Swarm Base Damage
1–5 1d6
6–10 2d6
11–15 3d6
16–20 4d6
21 or more 5d6
?(If the raven swarm uses a touch spell, it is discharged on a single creature affected by the swarm attack.)?
Special Attacks: A raven entity retains all the special attacks of the familiar. If the familiar had special permanent abilities not commonly found in familiars (such as from the Familiar Spell epic feat), it retains those as well, if appropriate for a swarm. In addition it gains the following special attacks:
Spells:
Fear:
Darkness:
Summon Ravens (Sp): Thrice per day, the raven entity can summon a swarm of ravens. The ravens themselves are considered non-magical, but can be dispelled like any conjuration (summoning) effect. Use the stats of the raven entity itself, but without any Su or Sp powers, without any spells, and with an Int of 2, for the raven swarm.
Special Qualities: A raven entity retains all the special qualities of the familiar. If the familiar had special permanent abilities not commonly found in familiars (such as from the Familiar Spell epic feat), it retains those as well, if appropriate for a swarm. In addition it gains the following special qualities:
Saves:The base Fortitude and Reflex saves of the raven entity are 1/2 the raven entity's Hit Dice +2. The base Will save of the raven entity is 1/3 of the raven entity's Hit Dice.
Abilities: Same as the familiar.
Skills: A raven entity gains skill points as a magical beast and has skill points equal to (2 + Int modifier) x(HD + 3). Treat skills from the familiar’s list and the familiar's master's list as class skills, and other skills as cross-class.
Feats:
Environment: Same as either the base creature or the dragon variety.
Challenge Rating: The raven entities hitdice +x
Alignment: Same as the familiar.
Advancement: -
Level Adjustment: -