Ull de bou siberià Phylloscopus collybita tristis a Cabrera/ Siberian Chiffchaff on Cabrera island 21-04-2018.
Observat a Cabrera el dia 21-04-2018 un nou exemplar d'ull de bou siberià Phylloscopus collybita tristis. Juan Sagardia i Maties Rebassa.
Raresa a Espanya Another Siberian Chiffchaff Phylloscopus collybita tristis was seen on Cabrera island on the 21-04-2018. Juan Sagardia and Maties Rebassa. Spanish rarity.
