Strix elementalist CR 6
Strix Conjurer 7
CN Medium humanoid (strix)
Init +5; Senses darkvision 60 ft., low-light vision; Perception +10 (+2 at night)

DEFENSE

AC 20, touch 12, flat-footed 19 (+1 Dex, +4 armor, +4 shield, +1 Deflection)
hp 34 (7d6+7)
Fort +2, Ref +3, Will +5; +2 vs. illusions

OFFENSE
Speed 30 ft., fly 60 ft. (average)
Melee spear +4 (1d8+1/×3)
Ranged (7/day) Acid dart +4 (1d6+3 acid)
Special Attacks hatred

SPELLS PREPARED
0°(DC 14)-Resistance, Detect Magic, Acid Splash, Prestidigitation
1°(DC 15)- Mage Armor, Shield, Grease(2, DC 17), Snowball(2, DC 17)
2°(DC 16)-Create Pit(DC 18), Blindness/Deafness(2), Summon Swarm(DC 18), Web(DC 18)
3°(DC 17)-Silent Summon Monster II(2), Force Anchor, Displacement
4°(DC 18)-Summon Monster IV(2), Dimension Door
STATISTICS

Str 12, Dex 13, Con 10, Int 18, Wis 11, Cha 7
Base Atk +3; CMB +2; CMD 14
Feats Improved Initiative, Spell Focus(Conjuration), Augment Summon, Silent Spells, Greater Spell Focus(Conjuration)
Skills Fly +11, Kn[Arcana]+14, Perception +10, Spellcraft +14, Stealth+11, Use Magic Device +10; Racial Modifiers +2 Perception and +2 Stealth in dim light or darkness
Languages Common, Strix, Orc, Giant, Terran, Auran
SQ nocturnal, Summoner's Charm +3, arcane bond(item), Arcane School(Conjuration), Opposition Schools(Evocation, Transmutation)
Gear: Elemental Gem(Air), Headband of vast intelligence +2, wand of Acid Arrow(10 uses), onyx ring worth 300 gp (Bound object, enchanted as a ring of protection +1), spellbook(contains all prepared spells plus 2 more spells each of 1st,2nd and 3rd level. Worth 1150 gp in total)

Preparations: Casts Mage Armor every day
Tactics: If planning an ambush, he casts Displacement and Shield, then casts his silent spells in advance to summon a Small Air and Earth elemental. He sends his minions forward while using Summon Monster IV to summon two waves of 1d3+1 Medium Earth and Air elementals, then joins the fight using spells like Create Pit, Web, Force Anchor and Blindness to incapacitate opponents, using his wand of Acid Arrow to finish off wounded enemies.
Notes: Augment summons gives all his minions the Advanced template.