Flock organization of the Shell Parrakeet Melopsittacus undulaius Shaw

[1] Allee W. C., 1931, ANIMAL AGGREGATION S

[2] ALLEE WC, 1911, NEW YORK ABSTRACTION, P43

[3] ALLEE WC, 1934, RECENT STUDIES MASS, V9, P1

[4] ALLEE WC, 1932, ANIMAL LIFE SOCIAL

[5] BAILEY FW, 1931, T ROY CAN I, V18, P1

[6] GREENE WT, 1892, PARROTS CATIVITY, V1

[7] HARVARD HE, 1920, TERRITORY BIRD LIFE

[8] Katz D, 1923, Z PSYCHOL PHYSIOL SI, V93, P287

[9] MASURE RALPH H., 1934, AUK, V51, P306

[10] MATTEWS GM, 1916, BIRDS AUSTR, V6

[1] Allee W. C., 1931, ANIMAL AGGREGATION S

[2] ALLEE WC, 1911, NEW YORK ABSTRACTION, P43

[3] ALLEE WC, 1934, RECENT STUDIES MASS, V9, P1

[4] ALLEE WC, 1932, ANIMAL LIFE SOCIAL

[5] BAILEY FW, 1931, T ROY CAN I, V18, P1

[6] GREENE WT, 1892, PARROTS CATIVITY, V1

[7] HARVARD HE, 1920, TERRITORY BIRD LIFE

[8] Katz D, 1923, Z PSYCHOL PHYSIOL SI, V93, P287

[9] MASURE RALPH H., 1934, AUK, V51, P306

[10] MATTEWS GM, 1916, BIRDS AUSTR, V6