A raven flying over the
Birds are winged, bipedal animals. They can be seen flying above most settlements in the Capital Wasteland, like Megaton, the Temple of the Union and Evergreen Mills. They can also be seen in the sky in New Vegas. It is unknown how birds survived the nuclear blasts of the Great War, and the majority do not appear to have been affected by the radiation at all, unlike most animals which survived the nuclear apocalypse.
Fallout 3 Edit
Birds are considered as world objects and cannot be interacted with in any way. They exist only as a distant visual effect. They can be seen circling around certain areas that contain some degree of notability, such as Megaton,
Old Olney and the alien crash site.
Birds remain in the air indefinitely, and will never land.
Because birds are a visual effect, they can fly through any surface in the Capital Wasteland.
Birds do possess a rudimentary 3D model, although it is essentially just a bird texture bent into a bird shape.
 Unlike in Fallout: New Vegas they are classed as objects and are little more than a moving model in the sky with little/no detail of wing animation.
Fallout: New Vegas Edit
Black, non-hostile birds that avoid direct interaction with the player character. They are seen sparingly in the
Mojave Wasteland, more frequently in Nipton and Boulder City.
Fallout 4 Edit
The generally unhealthier but otherwise mutation-free birds of
the Commonwealth display less fear of the player character.
The birds will stop flying to perch on trees, power lines and various places in Diamond City such as the roof of the All Faiths Chapel.
When shot at, birds will explode into several bloody pieces, but the corpses cannot be interacted with and will disappear quickly.
The Institute utilizes synth-UAVs, called "Watchers," to monitor activity within the Commonwealth. Ronnie Shaw comments on "seeing a lot of those Institute crow-things sniffing around." Justin Ayo makes numerous references to watchers, and the Synth Retention Bureau's surveillance monitor banks display footage at elevated angles or "birds-eye" view. In The Art of Fallout 4, numerous bird and bat concept arts are referred to as "Watcher Sparrow," "Watcher Crow," "Watcher Radgull," etc.
Mutated chickens that can be found on
the Island, they have lost almost all of their plumage due to high radiation levels and the radioactive Fog. They are docile and will flee from the player character if approached or shot at, but they can be killed and looted for chicken thighs.
Fallout Shelter Edit
Group of crows in
West Coast ( , Fallout , Fallout 2 ) Fallout: New Vegas Alien · Bighorner ( Bighorner bull, Bighorner calf) · Bird · Bloatfly ( ) Legendary bloatfly · Brahmin · Cazador ( Young cazador, Legendary cazador) · Centaur ( Evolved centaur) · Coyote ( Coyote alpha male, Coyote den mother, Coyote pup) · Deathclaw ( Baby deathclaw, Young deathclaw, Blind deathclaw, Deathclaw alpha, Mother deathclaw, Talking deathclaw, Legendary deathclaw) · Dog ( Cyberdog, Legion Mongrel, Vicious dog) · Fire ant ( Fire ant worker, Fire ant soldier, Ant queen) · Floater · Fly · Gecko ( Hunter gecko, Fire gecko, Golden gecko, Little gecko) · Ghost people ( Ghost harvester, Ghost seeker, Ghost trapper) · Ghoul ( Feral ghoul roamer, Feral ghoul reaver, Glowing one, Feral trooper ghoul) · Giant ant ( Giant worker ant, Giant soldier ant, Giant ant queen) · Giant catfish · Giant rat ( Mole rat, Pig rat) · Human ( Dwarf · Lobotomite) · Lakelurk · Mantis ( Giant mantis, Giant mantis nymph, Giant mantis female) · Marked man · Night stalker ( Young night stalker, Den mother, Legendary night stalker) · Radroach · Radscorpion ( Bark scorpion, Bark scorpion hunter, Small radscorpion, Giant radscorpion, Radscorpion queen) · Raven · Slags · Spore carrier ( Spore carrier savage, Spore carrier brute, Spore carrier runt) · Spore plant · Super mutant (Mariposa) ( Super mutant master, Nightkin) · Wanamingo · ( Tunneler ) Tunneler queen · Wolf · Yao guai East Coast ( , Fallout 3 , Fallout 4 , Fallout 76 ) Fallout Tactics 2 Abomination · Alien · Alien squid · Alien worm · Angler · Beaver · Bee swarm · Bird · Bloatfly · Bloodbug · Bloodworm · Brahmin · Brahmiluff · Cat · Cave cricket · Centaur · Chicken · Crow · Deathclaw · Dog ( Mongrel) · Fire ant · Firefly · Flatwoods monster · Fly · Fog crawler · Fox · Frog · Gatorclaw · Gazelle · Ghoul ( Feral ghoul, , Feral ghoul reaver Feral ghoul roamer, Glowing one, ) Swamp ghoul · Ghoulrilla · Giant ant ( Giant ant queen) · Giant catfish · Gorilla · Grafton monster · Gulper · Hermit crab · Honey beast · Human · Lamprey floater · Manowar tendril floater · Mega sloth · Mirelurk ( Mirelurk hunter, Mirelurk king, Nukalurk, , Swamplurk ) Swamplurk queen · Mole rat · Mole miner · Mothman · Mutant crocodile · Mutant hound · Mutant wanamingo · Needle tooth floater · Opossum · Rad chicken · Radgull · Rad rabbit · Rad-rat · Radtoad · Radroach · Radscorpion ( , Albino radscorpion Giant radscorpion) · Radstag · Scorched · Scorchbeast · Sea creature · Snallygaster · Squirrel · Stingwing · Tick · Super mutant (Vault 87) ( Super mutant behemoth, Super mutant brute, Super mutant master, ) Super mutant overlord · Super mutant (Institute) · Super mutant (Huntersville) · Swampfolk · Trog · Wendigo · Wolf · Yao guai Midwest ( , Fallout Tactics ) Van Buren Boom bug · Cat · Brahmin · Dog · Electro-beetle · Endless walker · Gehenna · Ghoul ( Born ghoul, Feral ghoul, Glowing one) · Giant albino ant ( Giant albino ant queen) · Giant leech · Giant rat · Giant wasp · Hairy deathclaw ( Baby hairy deathclaw) · Human · Komodo dragon · Molech · Mutant cannibal · Raccoon · Radroach · Radscorpion · Radtoad · Trog · Super mutant (Mariposa) · Wolf Texas ( , Fallout: BoS ) Fallout: BoS 2 Brahmin · Coyote · Dog · Experimental deathclaw ( Baby experimental deathclaw) · Ghoul ( Glowing one) · Giant rat ( Mole rat) · Human · Radbug · Radscorpion ( glowing radscorpion, spitting radscorpion, large giant radscorpion) · Small rat · Giant rat · Super mutant (Mariposa) Project V13 Ghoul · Human · Mutant mantis shrimp · Super mutant (Project V13) Fallout Shelter Deathclaw · Feral ghoul · Ghoul · Human · Mole rat · Cat · Dog · Parrot · Radroach · Radscorpion · Super mutant