Abstract
Summary Randall, R. M. & Randall, B. M. 1986. The seasonal occurrence of Leach's Storm Petrel Oceanodroma leucorhoa at St Croix Island, South Africa. Ostrich 57: 157–161. Leach's Storm Petrel Oceanodroma leucorhoa vocalizations were heard regularly from late October to late January at night at St Croix Island. Initial identification based on vocalizations was confirmed following live trapping at a burrow. Behaviour was similar to that on northern hemisphere breeding grounds, but only one individual appeared to visit the island. Some individuals of the species probably migrate regularly to southern Africa, but the scarcity of such records may be due to their oceanic distribution and nocturnal island visits.
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