Walter their should not be a problem where the entire birdage on a transporter is divided by all the costs involved, ie, Fuel, Convoyer/Driver, Ferrying etc. An example is the transporter has 4365 birds on board and the total race costs are £657 equating to 15 Pence per pigeon. Individual accounts are then sent to Federations Sec's for payment. Their is no operating for hire or reward therefore tachographs or operators license is not required. I worked this situation when Fed Sec and joint convoyed other Feds whenever posible to the satisfaction of all concerned.