Roque del Garajao appears among the Tenerife sites in the 2020–2022 Bulwer’s petrel study. The report records confirmed breeding in 2018–2020 based on the earlier studies it cites. [1]
For the period studied, the report estimates between one and five pairs of Bulwer’s petrel on Garajao. The figure draws on studies confirming breeding between 2018 and 2020 and describes a small colony. It is an estimate from that monitoring period rather than an updated bird count. [1]