Peregrines, black redstarts and fulmars breed on the cliffs. Guests have also sighted Scarlet Tanagers, Indigo Buntings, American Redstarts, and Barred Owls. The mature trees attract woodpecker, redstarts and pied flycatchers. In flight it bears some resemblance to thrushes and redstarts. Like all typical redstarts, they are strongly sexually dimorphic. Common redstarts are sometimes parasitized by common cuckoos. The blue whistling-thrush, redstarts, and forktails are found near waterfalls and hill-streams. The breeding habitats of the redstarts are open woodlands or scrub, often located near water. The species in this genus are also often called "redstarts". The redstarts feed almost exclusively on insects which are usually caught by flycatching. Redstarts are a group of small Old World birds.