Blood Bird
Small Beast
Hit Dice: 3d10+3 (19 hp’s)
Initiative: +2 (Dex)
Speed: 5ft, Flight (Average) 45ft
Armor Class: 13 (+1 Size, +2 Dex)
Attacks: Beak +5, Wing Spurs +0
Damage: Beak 1d4+1, Wing Spurs 1d3+1
Face/Reach: 5ft x 5ft/ 5ft
Special Attacks: Mutations
Special Qualities: Mutations
Saves: Fort +2, Ref +5, Will +4
Abilities: Str 12, Dex 15, Con 12, Int 3, Wis 16, Chr 2
Skills: Listen +5, Spot +9
Feats: None
Climate/Terrain: Any temperate
Organization: Flocks numbering anywhere from 5 to 20 birds
Challenge Rating: 2
Treasure: None
Alignment: Always Neutral
Advancement Range: 3-5 HD (Small)

See the Alternity Gamma World campaign setting for more information.

Combat:
Blood birds attack in swarms, pecking and slashing their foes into a slow death by radiation sickness.

Mutations: All blood birds have the following mutations: Radiation Tolerance and Radioactive Flesh.  Anyone who gets touched by a blood bird must pass a Fort save (DC 12) with a +1 bonus or have to check to see if they become sick or mutated as per the rules in the Mutations conversion found on my sight.  Attacks on the blood bird spill their irradiated blood, forcing anyone within 10 feet to pass a Fort save (DC 13) or suffer the effects of radiation.  

Society:
See the Alternity Gamma World campaign setting for more information.