diseased small parrot sitting on a branch in the aviary, bird with feather loss, bird with baldness

alopecia animal animals aviary aviculture bald balding baldness bare bird birds blue branch conure conures disease diseased diseases feather feathers health ill illness illnesses itch lice little losing loss louse mite mites molt molting parrot parrots pet pets plucking plumage poor problem problems shelter sick sickened sickness sicknesses sitting skin small