This cryptic species is the 'hot' season breeder on the Azores, with egg laying going on from May to early July - hatching spans from early June and the last chicks fledge by early October. This in itself provides a bit of a headache for those looking for 'cold' season [Grant's] Storm-petrels at sea on August and September pelagics, as young Monteiro's will have a full set of wings too.
Monteiro's Storm-petrels off Graciosa August 2014 (top three) and August 2013 (bottom two) |
Monteiro's Storm-petrel off Graciosa, May 2011. Note the fresh appearance of these birds at this time of year. |
Monteiro's Storm-petrel chick, Ilheu da Praia August 2009 |
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