Here’s a picture of the same statue back in January with snow covering it. 

“Bashka Paeff created “Boy and Bird” for a fountain on the Arlington Street side of the Garden. She said she was inspired by watching children feed the pigeons every day in Boston Common. A Russian immigrant, she was known as the “subway sculptor” before 1920 because she worked on her models while working as a ticket seller at the Park Street T station. She attended the Boston Museum School and trained in Paris. “Boy and Bird” was placed in the Public Garden in 1934. It has been replaced twice, once after theft in 1978 and again after vandalism in 1988.”

Reference: The Beacon Hill Times