Tractor Spring Plowing, Aerial Reversal View of Seagull Birds and a Plowing Machine Sowing and Birds Flying Around the Vehicle, Sunny Spring Evening Dawn, Uusimaa, South Finland -- Available in HD and 4k -- 4096 x 2160 - 152.4 MB - MPEG4 - AVC Coding - 18.4 MB/sec - 50fps --