So I guess I won't be loooking for an 8 ga. this did get me thinking about the why of it all. Found the prohibition here. It is under the Migratory Birds Convention Act - Regulations
HUNTING METHODS AND EQUIPMENT
15. (1) Subject to subsections (4) and (5) and section 23.1, no person shall hunt a migratory bird
(a) except with a long bow and arrow or with a shotgun not larger than number 10 gauge;
(Note: the subject to's relate to far north residents who can also use a rifle not larger that .22)
I can understand the rationale somewhat, but it does seem the desired result is lost with the introduction of 3 and 3 1/2 inch magnum shot shells. All a bit academic for a pheasant hunter.

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