Symptoms

Ruffled feathers

The bird remains in a ball, feathers ruffled, motionless away from the group.

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Diseases that may be associated

These signs can have several origins — this list is neither exhaustive nor a diagnosis.

Fowlpox

Chicken, Turkey · Viral · Infectious

Roundworm infection of warblers

Goldcrest · Parasitic · Parasites

Bacterial Skin Infection in Warblers

Warbler · Bacterial · Infectious

Gastrointestinal parasitism from roundworms in reed warblers

Marsh Warbler · Parasitic · Parasites

Avian influenza

Chicken, Turkey · Viral · Infectious

Transmissible to humans

Gastrointestinal parasitism in the Crab Plover (roundworms)

Crab Plover · Parasitic · Parasites

Gastrointestinal parasitism in woodpeckers (roundworms)

Picture · Parasitic · Parasites

Gastrointestinal parasitism in wagtails (roundworms)

Wagtail · Parasitic · Parasites

Gastrointestinal parasitism in barn swallows (roundworms)

Barn Swallow · Parasitic · Parasites

Gastrointestinal parasitism in Hawaiian geese (roundworms)

Nene · Parasitic · Parasites

Malnutrition and nutritional deficiencies in petrels

Petrel · Other · Nutrition & deficiencies

Gastrointestinal parasitism in terns (roundworms)

Tern, Arctic Tern · Parasitic · Parasites

Gastrointestinal parasitism in pheasants (roundworms)

Pheasant · Parasitic · Parasites

Coccidiosis in the Satin Bowerbird

Satin Bowerbird · Parasitic · Parasites

Gastrointestinal roundworm parasitism in thrushes

Thrush · Parasitic · Parasites

Gastrointestinal roundworm parasitism in the Bee-eater

Bee-eater · Parasitic · Parasites

Nutritional deficiency in captivity

Cockatiel, Rosy-faced lovebird · Other · Nutrition & deficiencies

Gastrointestinal parasitism in gulls (roundworms)

Gull · Parasitic · Parasites

Gastrointestinal Parasitism in Satin Bowerbirds (Roundworms)

Satin Bowerbird · Parasitic · Parasites

Gastrointestinal parasitism in the Common Guillemot (roundworms)

Common Guillemot · Parasitic · Parasites

Gastrointestinal parasitism in houbara bustards (roundworms)

Houbara bustard · Parasitic · Parasites

Gastrointestinal parasitism in rockhopper penguins (roundworms)

Rockhopper Penguin · Parasitic · Parasites

Ulceritis (ulcerative enteritis) of quail

Japanese quail · Bacterial · Infectious

Newcastle disease

Chicken, Turkey · Viral · Infectious

Transmissible to humans

Trichomoniasis in pigeons

Domestic pigeon · Parasitic · Parasites

Gastrointestinal kite parasitism (roundworms)

Milan · Parasitic · Parasites

Gastrointestinal parasitism in herons (roundworms)

Grey Heron · Parasitic · Parasites

Gastrointestinal parasitism in stilts (roundworms)

Black-winged Stilt · Parasitic · Parasites

Gastrointestinal roundworm parasitism in puffins

Shearwater · Parasitic · Parasites

Gastrointestinal parasitism in jacanas (roundworms)

African Jacana · Parasitic · Parasites

Gastrointestinal parasitism in guinea fowl (roundworms)

Helmeted guineafowl · Parasitic · Parasites

Gastrointestinal parasitism in spoonbills (roundworms)

Spoonbill, Roseate Spoonbill · Parasitic · Parasites

Avian chlamydia (psittacosis)

Cockatiel, Black-winged Stilt · Bacterial · Infectious

Transmissible to humans

Avian polyomavirus

Cockatiel, Rosy-faced lovebird · Viral · Infectious

Canary pox virus

Domestic canary, Serin · Viral · Infectious

Avian aspergillosis

Budgerigar, African grey parrot · Fungal · Infectious

Psittacosis (avian chlamydiosis)

Budgerigar, Macaw · Bacterial · Infectious

Transmissible to humans

Gastrointestinal parasitism in jays (roundworms)

Jay · Parasitic · Parasites

Gastrointestinal parasitism of crows (roundworms)

Crow · Parasitic · Parasites

Gastrointestinal helminthosis of common buzzard

Buzzard · Parasitic · Parasites

Ornithosis-psittacosis (avian chlamydiosis)

African grey parrot, Domestic pigeon · Bacterial · Infectious

Transmissible to humans

Malnutrition and nutritional deficiencies in captivity

Potoo · Other · Nutrition & deficiencies

pigeon herpesvirus

Rock dove · Viral · Infectious

Malnutrition and Nutritional Deficiencies in Toucans

Toucan · Other · Liver and pancreas

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Species concerned

Chicken Turkey Domestic canary Rock dove Domestic duck Northern bald ibis

All symptoms

This information is provided for educational purposes only and is not a substitute for a veterinary consultation. If you have any concerns about your animal's health, consult a veterinarian.