No evidence for widespread bird declines in protected South American forests

por Stouffer, P.C., Cockle, K.L., Aleixo, A., Areta, J.I., Barnett, J.M., Bodrati, A., Cadena, C.D., Di Giacomo, A.S., Herzog, S.K., Hosner, P., Johnson, E.I., Naka, L.N., Sánchez, C.