. "Birds and forestry / by Mark Avery and Roderick Leslie, 1990. - . - Remarkable birds / Mark Avery, 2016. - . -"@fr . . "Mark I. Avery" . . "Biologiste. - En poste : Royal society for protection of birds, Bedford, GB (en 1990)" . . . . "Avery" . "1993-10-20" . . "VIAF" . . . . . . . . . . "male" . "12341954"^^ . "Biologiste. - En poste : Royal society for protection of birds, Bedford, GB (en 1990)" . . . . . "2013-07-26"^^ . . . "Mark I. Avery"@fr . . "Biologiste. - En poste : Royal society for protection of birds, Bedford, GB (en 1990)"@fr . "2018-10-18" . . "0000000111344982" . . "Mark I." . . .