Great country but be very much aware not to take a private taksi in Warszawa!!!! Take an official one and ask for their prices.
Higlights were Short-toed Eagle, a definite Spotted Eagle, displaying Jack Snipe, Mole crickets, 5 passing Citrine Wagtail in just 2 hours, 15 ish Aquatic Warbler, 4 calling Little Crake with two birds at less than 2,5 metres distance in full sight, finding a Black Storks nest, hearing and recording two Wolfs, a ton of Marsh Terns, 11 places with Barred Warbler, a total of 5 Three toed Woodies with 4 in only one day, a White backed Woodie at less than three metres, Grey headed, finding many Middle Spotted, few Beeeaters heard, recording singing Tawney pipit, Ortolan Bunting, had Pygmy owl at three different locations (credits to Arek Shmura for the first) and, oh boy, I am in love with this song, finding two Blyth's Reed, but the list continues.
Saw only a Bison's ass and found a huge bone of it which showed the jawpressure of Wolf.
All set in a beatiful decoration of wonderful habitat with mjummy vegetation and trees.
Stunnin'