European Warbler With a Dark Head

This page is the CodyCross answer for the clue below from Top Secret, Group 2091, Puzzle 3 (Eavesdropping).

Question is: European Warbler With a Dark Head

and the answer is: BLACKCAP

Word Meaning:

BLACKCAP — A small Old World warbler, Eurasian blackcap (Sylvia atricapilla), which is mainly grey with a black crown.

Definitions from Wiktionary.