Photograph of Common Chiffchaff nominate subspecies from wintering grounds in Portugal (<i>Sergei Drovetski</i>). RakovićMarko M. NetoJúlio LopesRicardo J. A. KoblikEvgeniy V. FadeevIgor LohmanYuriy V. AghayanSargis A. BoanoGiovanni PaviaMarco PerlmanYoav KiatYosef DovAmir Ben Martin CollinsonJ. VoelkerGary V. DrovetskiSergei 2019 <p>Photograph of Common Chiffchaff nominate subspecies from wintering grounds in Portugal (<i>Sergei Drovetski</i>).</p>