Species in family 44
Species observed [DR] 24 (54%)
Species photo'd [DR] 11
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The Bush-shrikes are an interesting group of colorful and often secretive species, bearing shrike-like bills, restricted to sub-Saharan Africa. One widespread example is the
(left). It is a small bush-shrike placed in its own genus (
); more about it below.
Bush-shrikes are closely related to Helmet-Shrikes (Prionopidae), Vangas (Vangidae), and the Batises & Wattle-eyes (Platysteiridae). Indeed, most of the older literature lumps this group with one or more of these families. It was once thought they were also closely related to true Shrikes (Laniidae), but more recent biochemical research (e.g., Barker et al. 2004) shows that while they are both in the huge Corvoid assemblage, they are not really that closely related (a bit more on taxonomy below). The actual relationships between all these groups has recently received some resolution (Fuchs et al. 2004).
Many bush-shrikes have loud and characteristic vocalizations, but can be difficult to see. The
(right) is in this set. Even in this shot it is screened by branches and leaves, but perhaps you can get a feeling of the big hooked bill and colorful orangey-yellow underparts. It is a large bush-shrike in the genus
, which has six rather little-known species. Four of this genus are rare and range-restricted montane species [Lagden's
, and Uluguru
]. Quite a few of the bush-shrikes are undergrowth skulkers, hard to observe but strongly vocal. These include the
bushshrikes (a number of which are also montane specialists, including the endangered Mt. Kupe Bush-Shrike
that could actually belong to its own genus), and the
gonoleks and boubous. There is still much confusion about which species is in which genera; I use the proposals of Fuchs et al. (2004) here.
While boubous are dressed in various combinations of black, gray, and white, the gonoleks are truly spectacular. It is difficult to spot these denizens of thickets or other dense vegetation, but the effort can result in a very rewarding experience. Amazingly, the
(below) that I photographed at Mata Mata Camp in the Kalahari-Gemsbok Nat'l Park, South Africa, had gotten used to people, and almost walked across my foot as it came to a water drip! It is a startlingly gorgeous bird in this vast expanse of Kalahari desert.
Because the gonoleks and forest-dwelling bush-shrikes are challenges just to see, I was particularly pleased with my photographic opportunities during our quick-paced Uganda trip in 2002. I 'cut-and-paste' this quartet from the Uganda trip report: "With the help of a local guide, or Rita, or Hassan Mutebi playing tapes, I was able to photograph, for example, these four usually secretive bush-shrikes:"
(lower left), and
(lower right). The latter shot shows two adults dueting with a youngster peaking in from the back side.
A unique dry-country species is the
(left) of east Africa. It is found in decidedly terrestrial pairs, running rapidly between the thorn-scrub bushes. Males (like this one) call and display from bushtops. Although males have rosy throats, the bird is named for its rosy rump patch, best seen in flight. It has been traditionally placed in its own genus (
) but the newest biochemical research shows that it is not a distinct evolutionary branch, and it is now recommended to be included among the
bush-shrikes (Fuchs et al. 2004). Other impressive skulkers are included in this genus, including one with the enticing name Gorgeous (or Four-colored) Bush-Shrike
Another colorful genus is
, which includes the Many-colored Bush-Shrike
All are beautiful when seen but are incredibly hard to locate in the dense thickets they inhabit. Characteristic calls help, but even tapes don't always bring them in. The South African species goes by the Afrikaner name of
(below); it is more often heard than seen in the thornveld. This one perched briefly at the top of dense thorn tree.
Additional groups in this family are the puffbacks and the tchagras. Each is special in its own way. The puffbacks are not hard to see — most species forage in open the canopies of bushes or short trees, often with mixed species flocks — but they are named from the loose feathers on the male's rump and lower back. A male
(left; the bird is some distance away but in full display) puffs out the white rump feathers "to form a remarkable white ball, then bows, droops vibrating wings, and spreads tail. He makes short 'butterfly' flights with the puff expanded, and may drop vertically through the air with raised wings. Courting birds audibly click their wings" (Zimmerman et al 1996). The tchagras are thicket dwellers, though they can readily be enticed to the scrub edge. There are four species in the genus
and the widespread examples are birds of dry thorn-forest, like the
(below in a fine photo by Ed Harper). It can be a challenge to distinguish between the various tchagras unless good views are obtained; all have head patterns reminding me of large versions of the Worm-eating Warbler
in North America.
Some of the boubous (pronounced "boo-boo" so its a fun word to say) are pied black-and-white like puffbacks, but they are undergrowth skulkers best located by loud fluty calls, males and females dueting to each other. A widespread example is
(right in another photo by Ed Harper). Others are all black, clambering around in thickets and reminding me of black male antshrikes of several species in the Neotropics. A common example is
(right; trying to deal with a large worm captured in the canopy) has a tangled taxonomic history, and was at one time variously placed with the shrikes [Laniidae], bush-shrikes [Malaconotidae], helmet-shrikes [Prionopidae], or Old World Flycatchers [Muscicapidae]. "Its batis-like plumage, helmet-shrike-like tarsal scutellation and nest, and true shrike-like bill, juvenal plumage and behavior have fueled the debate" (Harris & Franklin 2000). Fortunately, that debate is now over as Fuchs et al. (2004) show it is firmly within the Bush-Shrike family.
The final member is Blackcap Bush-Shrike
, sometimes called the Marsh Tchagra. It hides in rank vegetation and reedbeds of swamps in west and central Africa. Harris & Franklin (2000) retained it in a monotypic genus as it differs from
in a variety of ways: it is sexually dimorphic, and differs in eye color, tail color, communication behavior, and nest decoration. However, the preliminary biochemical work shows it is close to
(Fuchs et al. 2004) and may prove in the future to better fit in that genus.
: Both photos of
were taken in Augrabies Falls Nat'l Park, South Africa, in July 2005. The
was in Kruger Nat'l Park, South Africa, in July 1996. The
was at Mata Mata Camp in Kalahari-Gemsbok Nat'l Park, South Africa, in July 2005. The Uganda quarter were from July 2002:
Ruhiza in Bwindi-Impenetrable Forest Nat'l Park,
was also at Ruhiza,
from Queen Eliz. II Nat'l Park,, and
in papyrus lining the Kazinga Channel. The
was photographed in Tsavo West Nat'l Park, Kenya, in Nov 1981. This male with a black-bordered throat patch is clearly of the race
which occurs south of the Equator; I also have photos of the race
from Samburu park, north of the equator, whose rosy throat is more extensive and not bordered with anything at all. The two races do not intergrade (emergent species?). The
in distant display was also in Kruger park in July 1996. The
was shot by W. Ed Harper in Kruger Nat'l Park, South Africa, near the Mozambique border, in July 1996. W. Ed Harper also photographed the
, this one at "The Ark," Kenya, in July 1994 (I have poorer photos of the southern race which is washed with pale cinnamon below). The
was in Samburu Nat'l Park, Kenya, in Nov 1981.
All photos © 2005 D. Roberson except the photo © W. Ed Harper 2005 and attributed to him; all rights reserved.
Harris, T., and K. Franklin. 2000.
Shrikes & Bush-Shrikes
. Princeton Univ. Press, Princeton, N.J.
This is a very attractive offering in the Princeton bird families series. Tony Harris wrote the text; Kim Franklin did the plates. It has the familiar layout of plates altogether in the front, with range maps and i.d. summary, and detailed species accounts in the back. It looks well researched and has a good bibliography. I very much enjoyed the full-page spreads, with black-and-white sketch, on each genus in the groups covered, that highlights the introduction. There is a lot of discussion of taxonomy but, unfortunately, the authors chose to follow the Sibley & Monroe (1990) approach of only two families: shrikes [Laniidae] and bush-shrikes [Malaconotidae]. All of the batises, wattle-eyes, helmet shrikes, and such things as flycatcher-shrikes, wood-shrikes, and philentomas, are thrown into the latter family. New research does not support this approach. As it turns out, the true shrikes are not the closest relatives to the rest of this set (e.g., Barker et al. 2004), so even the premise of this book proves false. Further, vangas (not included in this book) are closely related to the rest of the group. Indeed, it appears that the flycatcher-shrikes are vangas, and that helmet-shrikes are very closely related to vangas. The text also suffers from the author's use of the "Species Recognition Concept" as his definition for species; fortunately, in practice, in works rather like the tried-and-true "Biological Species Concept." Yet both in its language and in its reliance on DNA hybridization evidence (Sibley & Ahlquist 1990), this book has the unfortunate status of being out-of-date taxonomically much more quickly than would be anticipated.
That having been said, the species accounts, maps, and paintings for the species that are included all are very good. This is a well-written book with attractive paintings. It is great to have a world overview of the species that are included, even if they do not hang together as a group.
One major annoyance: citations in the text are small-print superscript numbers. A list of these numbers is in the back of the book, but the list does not give the full citation. Rather, citation number 732 is "Emlen 1979." One then has to go check the bibliography to locate the full citation to Emlen's note in
on fiscal shrikes. This is an entirely unnecessary double effort for the reader, and should have been fixed by the publisher (just number the bibliography if you use this tactic; see Dickinson 2003 for an example of the proper way to do this). Despite all these criticisms, it IS a very attractive publication and quite useful in many ways. So I give it 4 (of 5) stars despite its limitations. The basic, underlying information about each taxa, and the attractive plates, make up for a lot.
Other literature cited
Barker, F.K., A. Cibois, P. Schikler, J. Feinstein, and J. Cracraft. 2004. Phylogeny and diversification of the largest avian radiation. Proc. Nat. Acad. Sci. 101: 11040-11045.
Beresford, P., F.K. Barker, P.G. Ryan, and T.M. Crowe. 2005. African endemics span the tree of songbirds (Passeri): molecular systematics of several evolutionary 'enigmas'. Proc. R. Soc. B 272: 849-858.
Cibois, A., E. Pasquet, and T.S. Schulenberg. 1999. Molecular systematics of the Malagasy babblers (Timaliidae) and Warblers (Sylviidae), based on cytochrome b and 16S rRNA sequences. Molecular Phylogenetics & Evolution 3: 581-595.
Cibois, A., B. Slikas, T.S. Schulenberg, and E. Pasquet. 2001. An endemic radiation of Malagasy songbirds is revealed by mitochondrial DNA sequence data. Evolution 55: 1198-1206.
Dickinson, E.C., ed. 2003. The Howard & Moore Complete Checklist of the Birds of the World. 3d ed. Princeton Univ. Press, Princeton, N.J.
Dowsett, R. J., and F. Dowsett-Lemaire. 1993. "Comments on the taxonomy of some Afrotropical bird species," pp. 232-389
A Contribution to the Distribution and Taxonomy of Afrotropical and Malagasy Birds (R. J. Dowsett & F. Dowsett-Lemaire, eds.). Tauraco Res. Rpt. 5. Tauraco Press, Liége.
Fuchs, J., R.C.K. Bowie, J. Fjeldsa, and E. Pasquet. 2004. Phylogenetic relationships of the African bush-shrikes and helmet-shrikes (Passeriformes: Malaconotidae). Mol. Phyl. Evol. 33: 428-439.
Keith, S., E. K. Urban, and C. H. Fry, eds. 1992. The Birds of Africa. Vol. 4. Academic Press, London.
Schulenberg, T.S. 2003. "The Radiations of Passerine Birds of Madagascar," pp. 1130-1134 in S.M. Goodman & J.P. Benstead (eds.) The Natural History of Madagascar.
Sibley, C. G., and J. E. Ahlquist. 1990. Phylogeny and Classification of Birds: A Study in Molecular Evolution. Yale Univ. Press, New Haven, CT.
Sibley, C. G., and B. L. Monroe, Jr. 1990. Distribution and Taxonomy of Birds of the World. Yale Univ. Press, New Haven, CT.
Traylor, M. A. 1986. "Platysteiridea," "Muscicapidae," et al.
Check-list of Birds of the World (E. Mayr & G. W. Cotrell, eds). Vol. 11. Harvard Univ. Press, Cambridge, MA.
Zimmerman, D. A., D. A. Turner, and D. J. Pearson. 1996. Birds of Kenya and northern Tanzania. Christopher Helm, London.
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Page created 5 Mar 2000; substantially revised 7-9 Oct 2005