The Tenerife Blue Tit (above) has a navy blue/black cap
This one has young in the crevice in the rock wall
but they also nest in holes in trees and buildings.
The Tenerife Blue Tit, sometimes called the African Blue Tit, has been moved from the Parus genus to Cyanistes, like the European Blue Tit. The very similar North African Blue Tit prevalent on some other Canary Islands and Northwest Africa is still often referred to as Parus ultramarinus but is also called Cyanistes ultramarinus and even Cyanistes teneriffae ultramarinus.
Tenerife Blue Tit with large caterpillar
The fledgling looks similar to its European cousin . . .
with a grey cap, but, like the adult, a wider bandit mask
Tenerife Blue Tit with Canary