foresttwitcher
Virtually unknown member
What would be the best time of year to go for a weeks birding in Madeira?
It seems Zino's tours is between April and August.
https://www.madeirawindbirds.com/en/tours/madeira_zinos_night_expedition.html
"Visited this famous place for Zino’s Petrel toge
ther with the excellent guide Amílcar Vasconcelos
from Madeira Aventura. According to Amílcar, who was a bit sceptical to the possibility of hearing and
seeing the Zino's this early in season, he had never
been at the breeding ledges earlier than late April. "
http://madeira.seawatching.net/reports/Maderia2005_RB.pdf
more reports
http://madeira.seawatching.net/reports.html
Very good information should be by dutch birder michel de Lange, but I can't find this page.