It may be best to look at Hants/Dorset rather than the IOW, there are several good ones in the area :)
If you want personal recommendations feel free to PM me, otherwise take a peek at www.ukrcb.co.uk, www.apbc.org.uk or www.apdt.co.uk (the latter are not behaviourists as such but some have behavioural knowledge).
Hth
Lindsay
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