sentences:  They then catch prey items dislodged by the disturbance.Ground-foraging birds can be very hard for humans to observe, as they often occupy densely vegetated habitat, as in the case of the Bornean wren-babbler, which specializes in gleaning leaf litter in gullies in the forest of Southeast Asia.A feeding technique that is somewhere between gleaning and hawking is where a bird flies from a perch and takes prey off foliage; this is called "sally-gleaning".