Roque de la Coronela 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]
The report estimates fifteen to twenty pairs of Bulwer’s petrel. It combines studies from 2018–2020 with earlier data relating to 1987. This perspective shows the colony’s history of observation; the estimate belongs to the published monitoring period and is not a current census. [1]