Willow wren or willow warbler with olive green and pale yellow plumage. "Albin says it sings like a grasshopper and frequents woods and solitary places, sitting on the tops of oaks.". Phylloscopus trochilus (Motacilla trochilus). Edward Donovan (1768-1837) was an Anglo-Irish amateur zoologist, writer, artist and engraver. He wrote and illustrated a series of volumes on birds, fish, shells and insects, opened his own museum of natural history in London, but later he fell on hard times and died penniless.. Handcolored copperplate engraving from Edward Donovan's "The Natural History of British Birds" (1794-1819).