Do you have any other pics of it? It looks a Great Crested to my eyes but, flycatchers on this kind of pics (no offence intended) can be very tricky and it's always better to check any other images available.
Not necessarily, as I wrote before, just the same spot, a small tree in a meadow. And I heard songs of both of them around there. Anyway, thats ok. Another example of how confusing could by pictures of birds