Birdr

Sykes's Warbler vs Western Olivaceous Warbler

Iduna rama versus Iduna opaca

Practice

Play a quiz with Sykes's Warbler and Western Olivaceous Warbler

Sykes's Warbler (Iduna rama) Sykes's Warbler
Western Olivaceous Warbler (Iduna opaca) Western Olivaceous Warbler

Media

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These two are often mixed up in quizzes. Look at the photos, then practise the pair until the field marks stick.

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Sykes's Warbler · Western Olivaceous Warbler · My Tricky Birds