1. Leslie Norris was a famous Welsh poet born in 1921 who published his first poem in 1938 and first book of poetry in 1943, winning several awards for his works before passing away in 2006.
2. The poem contrasts a tiger confined to a zoo cage with how it should be living freely in the jungle, able to stalk and hunt at the water hole without being watched by visitors in the unnatural habitat of captivity.
3. The tiger is angry but quiet in its cage, moving about at night and watching the stars, while the poet imagines how it should be lurking and hunting in the jungle rather than imprisoned.