If you are thinking of coming to Poland to see as many lifers as possible, then this time of year is the best to do it!
Almost all migrating species has already arrived, including bright Bee-eater, shy warblers (Aquatic, River, Icterine, Barred, Marsh and many more), elusive crakes (Corn and Little), beautiful red-coloured Rosefinch and Red-breasted Flycatcher or nightingales like Trush Nightingale and Bluethroat.