セスジカッコウ Tapera naevia

Long-tailed, fairly small cuckoo of tropical lowlands, rarely seen unless singing its loud and far-carrying song, usually from a fence or other low perch. Most of the time it is furtive, feeding on or near the ground in dense growth. Found in scrubby woodland and edge, overgrown weedy fields, and thickets, often with dense grasses. Note the striped upperparts and plain buffy underparts. While singing it often raises and lowers its dark crest.