Species › Birds

Melodious Warbler

Hippolais polyglotta

Order: Passeriformes
Family: Acrocephalidae
Presence in the Strait: Seasonal
Abundance: abundant
Protection in Spain: Special protection (List)
In Spanish: Zarcero políglota

35% of its open observations in the area are from May.

Photograph: Donald Davesne, CC BY, vía iNaturalist

Length: 13 cm
Weight: 11 g

Presence in the Strait

Abundant summer visitor to scrub.

Identification

Larger than a Phylloscopus, with grey-green upperparts and yellowish underparts; rounded head, pale lores, strong and quite long bill and brownish legs.

Movements

Peaks in 1st hf. May and 1st hf. August.

Bioestrecho editorial text. Last revised: 8 September 2026.

Photographs from iNaturalist observations with the licence checked file by file. Those marked “Strait” were taken within the area; place and date are those of each observation.

Calendar in the Strait

35 %

Peak in May. Observations under CC0 or CC BY licences. The distribution also reflects observation effort.

Where it is seen

Open records from the atlas database, in cells of about 3.6 km. Opacity follows the square root of the count, and also reflects where people observe most.

See on the map

First open record: 28 April 1972
Latest record: 19 July 2025

The oldest and the most recent open observation in the extended area. A recent first observation does not mean the species is new: it means nobody had published it openly before.

Conservation

The catalogues, Andalusian and Spanish, are what binds; the Red Book assesses the Spanish population with IUCN criteria, and the global Red List is the context.

LCNTVUENCR

Andalusian Catalogue: Special protection (List)
Spanish Catalogue: Special protection (List)
Red Book of the Birds of Spain 2021: LC · Least concern · breeding
Global Red List (IUCN): LC · Least concern

Andalusian Catalogue: Junta de Andalucía, list of 24 April 2025. Spanish Catalogue: MITECO, table of 30 June 2025. Red Book: SEO/BirdLife, 2021 (Annex I). IUCN: via GBIF, 6 September 2026. Red Book and IUCN categories are assessments; catalogue categories are legal obligations.

Phenology compared

Monthly distribution in proportion, by decade. It shows whether the passage is getting earlier or later.

1990–1999

2000–2009

2010–2026

Proportions, not totals: observation effort grew faster than any population.

Same genus in the Strait

Icterine Warbler13–13 cm · Vagrant · overlapping size

Species of the same genus that also occur here, ordered by how close they are in size. Being relatives does not mean they are confused in the field, but that is where the doubts start: compare size and season.

Classification

Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Acrocephalidae
GBIF taxon key: 2493214

Sources

Distribution and calendar: Bioestrecho's own database, ingested from GBIF and OBIS
Photograph: Donald Davesne, CC BY, vía iNaturalist
Taxonomy: GBIF backbone, pending WoRMS for marine taxa
Editorial text: written by Bioestrecho
Last revised: 8 September 2026

Melodious Warbler

Presence in the Strait

Identification

Movements

Gallery