“…G astrointestinal foreign bodies (FBs) have been reported in a number of avian species, resulting in obstructions in the crop, 1-5 proventriculus, 1,5-10 ventriculus 1,[11][12][13][14][15][16][17][18][19][20] and intestines. [20][21][22][23] Previous reports have described individual cases of FBs composed of wood, 6,7,9 synthetic and natural fibres, 3,9,21,22 feathers, 2,16 stones, 4,9,15 plastics 8,14,17,20 and metal. 5,[10][11][12][13]17,19 Most reported cases in psittacine birds involve unweaned birds.…”