SPECIES

Cape Rockjumper Chaetops frenatus Scientific name definitions

Krista N. Oswald
Version: 2.0 — Published May 17, 2021

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Male
Female
Male
Female
Female
Juvenile lateral view.
Juvenile with remnant yellow gape.
Adult male (right) and juvenile (left).
Juvenile lateral view.
Female lateral view.

Burgundy-orange underparts, throat and face grayish with white-orange malar stripe.

Female frontal view.
Female lateral view.
Male lateral view.

Forehead, crown, hind-neck, supercilium, lores, cheek, auriculars, and lower neck side are finely streaked black; black moustachial stripe which contrasts with bright white malar stripe to upper breast.

Male dorsal view.

Mantle, scapulars and back are silvery gray with dense black streaks; rump rich chestnut red.

Male frontal view.

Chin to upper breast is black, with mid-breast and belly rich chestnut red.

Female showing head detail.
Typical restio-dominated mountain habitat Fynbos preferred by Cape Rockjumpers, 3–5 years since a wildfire.
Just weeks after a wildfire, this newly burned Fynbos habitat is now open for Cape Rockjumpers.
Cape Rockjumper exposed on a boulder, keeping a vigilant eye on the area.
Mountain Fynbos habitat with a thriving Cape Rockjumper population occurs down near sea level in the Overberg.
Lowland Fynbos on a plateau in the Swartberg, between peaks of mountain Fynbos that are home to Cape Rockjumpers.
Cape Rockjumper with unidentified Bradypodion (dwarf chameleon) species.
Male with a caterpillar.
Female with a butterfly.
Male with a flat lizard.
Female with a flying termite.
Female with a segmented worm.
Male giving a full call.
Male calling with upright tail.
Female calling with spread tail.
Juvenile calling.
Male gliding with spread tail.
Female with fluffed out feathers.
Male crouching with feathers fluffed.
Male rubbing its head and bill along rocks.
Territory dispute between two males.
Female with aggressive posture.
Nest under rock with Boomslang at the top left.
Male mobbing and alarm calling while Boomslang is on bottom right.
Male mobbing nearby Boomslang.
Egg ejecta, likely Dasypeltis scabra.
Nest in part sun for the late afternoon.
Nest built under large boulder in deep shade.
Nest built in the base of a plant under rock overhang.
Nest built in a rock hollow.
Nest built under large rock slab.
Nest built at base of geranium, against rock wall, center right.
Nest built in a rock fissure.
Nest built at the base of a rock wall.
A rare example of a tidy Cape Rockjumper's nest.
Male down right of nest holding nesting material while vigilant.
Male on rock under which nest is being built, maintaining vigilance.
Nest with 2-egg clutch.
Nest with 2-egg clutch.
Nest with 3-egg clutch.
Nest with 3-egg clutch.
Female by a nest a few days after heavy snowfall; this nest, which had 2 nestlings, survived the snow.
Nest where one of three eggs hatched, with the other two hatching within 24 hours of the first.
3 day old nestling beside unhatched, unviable egg.
Newly hatched chick, still damp from the egg.
Newly hatched chick immediately assumes begging posture.
2 day old nestlings, mostly naked with light down.
5 day old nestling still mostly covered in down.
12 day old nestling with wing pins but no feather emergency.
12 day old nestlings in the nest.
12 day old nestling with exposed sternum and body feathers still developing.
15 day old nestling still with fluffy head down.
15 day old nestling with feathers partially emerged from wing pins.
Male with fecal sac.
Adult male feeding a fledgling.
Ca 3 month old with immature plumage and dark eye.

Recommended Citation

Oswald, K. N. (2021). Cape Rockjumper (Chaetops frenatus), version 2.0. In Birds of the World (T. S. Schulenberg and B. K. Keeney, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rufroc1.02