Jaysan
Well-known member
Amazing job by the guys at BTO. You may wish to see the info at
http://www.bto.org/sites/default/files/u49/BTO_299_16-17Swifts.pdf?dm_i=IG4,U0AQ,4BMHD4,2GK0S,1
Cant believe the distances covered and the fact it can spend so much time without having to land.
Happy reading.
http://www.bto.org/sites/default/files/u49/BTO_299_16-17Swifts.pdf?dm_i=IG4,U0AQ,4BMHD4,2GK0S,1
Cant believe the distances covered and the fact it can spend so much time without having to land.
Happy reading.