How is "Funeral Bells" a modernist poem? What features of the poem make it modernist?
"The Funeral Bell" by Francis Duggan in a modern or contemporary poem as it was written by a poet who is still alive but it is not a modernist poem. It is written in four line stanzas rhymed AABB. The rhythm of the lines is awkwardly prosaic. Rather than attempting the rhythmic tensions associated with modernism, this author's piece of doggerel simply does not appear in control of his language, using odd locutions such as "Farewelling a deceased soul" as a failed attempt at heightened poetic language.
The main figurative device is the pathetic fallacy, in which birds are imagined to be mourning for the deceased. We have none of the dense allusiveness, irony, or disruptions of poetic convention associated with modernism.
Note that there is a poem called "Funeral Blues" by W. H. Auden that is a modernist poem, but the question asked about "Funeral Bells," not "blues".