Hen Harrier Poems is Colin Simms' fifth collection with Shearsman, and his third devoted to poems on a specific species, following Otters and Martens (2004) and Gyrfalcon Poems (2007). Future plans include volumes devoted to poems on merlins and on goshawks. Simms is a naturalist who has observed the harrier and its North American cousin, the marsh hawk, for decades; his poems fuse a rich Bunting-esque diction and sonority with a focused eye and imagination.