Great tits at De Hoge Veluwe National Park, a large wooded area near Visser's office, engage in their annual nesting rituals in April and May.
Great tits at De Hoge Veluwe National Park, a large wooded area near Visser's office, engage in their annual nesting rituals in April and May.
维瑟的办公室邻近侯格维陆威国家公园的一大片林地，这里的白颊山雀会在每年4~5月进行「筑巢仪式」。