Monteiro’s, adult, August, 2 Vincent (1)

Adult Monteiro’s Storm-petrel, August 2012 (Vincent Legrand). Other summer breeding ‘band-rumped storm-petrels’ from Madeira and Cape Verde would also be moulting inner primaries during the late summer, and  as such, these birds would be ‘impossible’ in some cases to tell from Monteiro’s Storm-petrel. A Madeiran Storm-petrel was actually sound recorded from within the Monteiro’s colony on Graciosa in May 2007 (Robb et al 2008) so this potential identification hazard is proven. Monteiro’s Storm-petrel is not called a ‘cryptic species’ for no reason!

Adult Monteiro’s Storm-petrel, August 2012 (Vincent Legrand). Other summer breeding ‘band-rumped storm-petrels’ from Madeira and Cape Verde would also be moulting inner primaries during the late summer, and as such, these birds would be ‘impossible’ in some cases to tell from Monteiro’s Storm-petrel. A Madeiran Storm-petrel was actually sound recorded from within the Monteiro’s colony on Graciosa in May 2007 (Robb et al 2008) so this potential identification hazard is proven. Monteiro’s Storm-petrel is not called a ‘cryptic species’ for no reason!

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