Having read the poem, try to guess whether the poet is fond of cats. If so, why does he call Macavity a fiend and monster?

Yes, it seems like the poet is fond of cats. He calls Macavity a ‘fiend’ and a ‘monster’ because he might have wanted to portray an evil side. He might have used a cat in order to create a negative character who is a criminal and escapes easily from police. The quick movements of a cat and its mysterious eyes might have influenced him to create this evil character in the form of a cat.