The hon. Gentleman is misunderstanding the effect of the amendments. If amendment No. 2, for example, were accepted, paragraph 1 would state:
A person commits an offence if he hunts a wild mammal other than a rabbit with a dog.
Someone who in practice hunted an animal that was not covered by the exception would be committing an offence, so the amendment would not cause the doubt to which the hon. Gentleman refers.