Forest species with preference for wet masses, riparian woods and deciduous forests, but which occupies during winter practically from gardened areas at sea level up to mountain scrub at medium altitude.

Wintering bird in the province that can also be seen in migratory passage. It breeds from March. Nest in the low altitude scrub. A laying of 3 to 9 eggs. Insectivorous diet based on small invertebrates.

Abundant and frequent species. It can be watched widely throughout the province. Very typical in urban parks during the winter. In the Great Path it is present in most stages.

The name of this bird in Spanish ("mosquitero") makes a clear reference to its feeding approach, like its Latin name, which means that it spends time looking among the leaves, looking for food. In English, however, it is known as "chiffchaff" because that is its repetitive call. Until a few years ago it was considered the same species as the Iberian Chiffchaff. Genetic analyses have shown that they are different species, with a distinctly different phenology.