What is the poetic devices used in the following lines
"showing her barred face identity mask" in the laburnum top poem?
The mother goldfinch has stripes on her face. After she perches on the laburnum tree with food in her beak, she hops closer to her nest where her baby-chicks are waiting for her. As she looks into the nest from the edge, her baby-birds recognize her face and start chirruping and opening their tiny beaks for food.