They are slender greyish or brown birds with soft, hairlike body feathers. The ridges of the locules are pale orange or lighter and ciliate (having hairlike projections). The nymphs also had an unusual appearance, being covered in numerous hairlike filaments. These brands sometimes consist of hairlike tufts which facilitate the diffusion of the pheromone. The dactylozooids have hairlike tentacles covered in cnidoblasts. Scales may be piliform (hairlike) or flattened. Upon hatching, the nestling (or squab) was blind and sparsely covered with yellow, hairlike down. Also present are the nationally scarce rootless duckweed "(Wolffia arrhiza)" and hairlike pondweed "(Potamogeton trichoides)". The down feathers are small and hairlike at the base of each flight feather. Leaves are short and hairlike, spreading when moist; somewhat folded or twisted when dry. It is hairlike, very long and very thin. The hairlike roots extend out into the water.