Footnote
a Europe’s smallest birds, the resident goldcrest, commonly called the golden-crested kinglet, and the winter-visiting firecrest are a quarter of an inch [about half a centimeter] shorter but are rarely seen.
a Europe’s smallest birds, the resident goldcrest, commonly called the golden-crested kinglet, and the winter-visiting firecrest are a quarter of an inch [about half a centimeter] shorter but are rarely seen.