Showing posts with label Rwanda birds. Show all posts
Showing posts with label Rwanda birds. Show all posts
Tuesday, July 23, 2013
Discover the Birds of Agahozo-Shalom Youth Village
Click the poster image above or this link Birds of Agahozo-Shalom Youth Village to see photographs of more than 100 species of birds that live or visit Agahozo-Shalom Youth Village. The poster, with birds drawn by an Agahozo-Shalom student, is featured at several locations at Agahozo-Shalom Youth Village in Rwanda.
Sunday, December 4, 2011
Earth on the Wing
| Meyer's (brown) parrots (Poicephalus meyeri) on the left with a male African orange-bellied parrot (Poicephalus rufiventris) on the right, Tarangire National Park, Tanzania |
| Yellow-billed storks (Mycteria ibis) on the wing, Ngorongoro Conservation Area, Tanzania |
| White-crested helmet-shrike (Prionops plumatus), near Kibungo, Rwanda |
| Denham's bustards (Neotis denhami), Murchison Falls National Park, Uganda |
| African paradise flycatcher (Terpsiphone viridis), Ngorongoro Conservation Area, Tanzania |
| My final photograph in Africa. Although I am no longer in Rwanda, you can read about my continuing experience with birds, ecology, and sustainability at Earth on the Wing. |
Saturday, December 3, 2011
The crane they call Umusambi
Friday, November 11, 2011
Art and science collide!
Binoculars. Colored pencils. Early mornings. Rough drafts. In a world full of birds, art and science combine to make bird knowledge accessible.
Agahozo-Shalom is rich in birds, and now its students can learn about them with a new poster illustrating more than 30 of the most common species.
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| Red-eyed dove - Streptopelia semitorquata - Inumah |
Agahozo-Shalom is rich in birds, and now its students can learn about them with a new poster illustrating more than 30 of the most common species.
| Meet the artist: Rossi, a 9th grade student at ASYV, drew most the birds. He was president of the student art club and spent his free time on Saturdays and Sundays illustrating our feathered friends. |
Take a virtual bird tour of Agahozo-Shalom Youth Village!
Interested in nature? Great! New to birdwatching? No problem! Join us for a virtual tour of the birds of Agahozo-Shalom Youth Village.
| Black-headed herons (Ardea melanocephala) visit ASYV- so should you! |
The sun rises at about 5:45am here, and we could start our bird walk this early if you like. Birds tend to be most active in the morning (about 6am-10am), but the real draw of the early start is that the sun lights up the sky as it appears from behind the hills.
| Worth the early wake-up... sunrise at ASYV |
Wednesday, November 9, 2011
The ones you miss (Ballad of the Birding Blues)
Get ready for some heartache... as much as birds can cause.
First, think about basketball. You have to take shots to score. It is the only way to get points. Inevitably, you are going to miss some of those shots too.
If you want to see a wide variety of birds, you have to go out looking. To see new birds, you may have to travel and spend money/energy/time to find them. Sometimes you get the birds. Sometimes you don't.
| Green-breasted pitta, painting at Kibale National Park headquarters. Never saw it in the flesh (in the feather!) |
Saturday, October 29, 2011
Beauty Pageant
Some birds just show it off. A group of seedeaters called Estrildids are small but especially attractive. Even the duller species have their flair. Let's take a look.
| Male green-winged pytilia (Pytilia melba) at Agahozo-Shalom Youth Village, Rwanda |
Be sure to vote for your favorite estrildid in the comments section.
Monday, October 17, 2011
Boy, you're lookin' fine! Sexual dimorphism in birds
| Ostriches (Struthio camelus) are sexually dimorphic. The male (right) has a pinkish neck and legs, and black and white feathers. The female (left) is mostly brown. |
When males and females of the same species have different physical forms, it is called sexual dimorphism. These differences can be in body parts, color patterns, and size. If you are trying to identify a species, recognition that the sexes may appear different is key. I once met a woman who swore she had two species of cardinals in her yard, but after a bird walk she discovered the Northern Cardinal males are bright red whereas the females are greyish red. Same species, but different looking.
Why?
Tuesday, October 11, 2011
The Kinyarwanda-English Bird Dictionary
| Kids that followed us on a birdwatching hike imitate our use of binoculars. South of Agahozo-Shalom Youth Village, Rwanda. |
Bird = inyoni. Whenever someone eyes us suspiciously or gawks at us as we are out staring at a bird, all we have to say is “inyoni.” Hahaha, uproar and laughter! Inyoni, imagine that!
| Kinyarwanda: Sarufuna, English: hamerkop (Scopus umbretta) at Lake Kivu, Rwanda |
Many of the bird names in Kinyarwanda are not specific to the species of bird, but represent a group of similar birds. For example, although there are seven types of turacos in Rwanda, some as strikingly different as Ross’s Turaco and the Great Blue Turaco, the name is the same for them all (inganji).
Sunday, October 9, 2011
Chatting with Robins
| White-browed Robin-chat (Cossypha heuglini). Vegetation by Lake Kivu, Rwanda. This is also a common bird at Agahozo-Shalom Youth Village. Muscicapidae (Old World Flycatchers) |
One of the tricky aspects of bird lingo is that some common names do not carry over from location to location. In addition, some birds have names because of similar looking birds, but are not even classified in the same family. For example, one might assume that the American Robin (Turdus migratorius) and the European Robin (Erithacus rubecula) are closely related. Not so! They are actually classified in different families, with the American Robin in Turdidae (which contains Thrushes and other similar birds) and the European Robin in Muscicapidae (Old World Flycatchers).
East Africa contains examples from both families, and they are delights!
Friday, October 7, 2011
Little Game Hunters: Eagles, Hawks, and Falcons
| Bateleur eagle (Terathopius ecaudatus) at rest in Murchison Falls National Park, Uganda |
Everyone can enjoy eagles, hawks, and falcons, otherwise known as birds of prey. Everyone, that is, except the prey. Sorry rodents, snakes, lizards, and smaller birds, this post celebrates your air-borne stalkers.
Wednesday, September 21, 2011
Advice from little hornbills
Crowned Hornbill, Tockus alboterminatus, in trees near the shore of Lake Victoria, at Mabamba Swamp, Uganda |
My first exposure to hornbills was likely Disney’s Lion King, where Zazu tries to keep Simba out of trouble. Much to my dismay, Zazu appears to be a fictionalized hornbill species. I can’t find a match*. The only “little hornbills” are the dwarf-hornbills of the Congo rainforest and Western Africa, and even they are not that small. Certainly, none of the hornbills have given me any advice, although I am no king lion.
Tuesday, September 20, 2011
Sipping the sun
| Scarlet-chested Sunbird, Chalcomitra senegalensis (male), at Agahozo- Shalom Youth Village, Rwanda |
Sunbirds are little gems that will catch your eye. Bright reds, greens, blues, and then woah, is that the same bird? Where did its color go? What just happened? Male sunbirds seem to change color as they move around. The males of many sunbird species have iridescent feathers, which reflect light differently depending on how light hits them.
Wednesday, September 14, 2011
What did the bishop say to the widow?
Bishops and widowbirds are types of weavers, as mentioned in my most recent post. The males are brightly-colored birds; some male widowbirds have long tail feathers. Females are light brown and look very similar to each other, as was the case with the other weavers.
Tuesday, September 13, 2011
The Basket Weavers
| Male village weavers attend to their nests. |
Did you know that birds generally do not live in nests? Nests are made for laying eggs and rearing young. While some nests are very simple or require little to no preparation (like a hole in a tree), some birds are master builders. Weavers construct their nests by weaving grass, sticks, and other plant materials into ball- or tube-shaped baskets, often with entrances on the side or bottom.
Sunday, September 11, 2011
Only in Africa- the Turacos
| Great Blue Turaco (Corythaeola cristata) at Mabira Forest Reserve in Uganda |
I saw my first turaco one week after arriving in Rwanda. I was hiking toward the back of ASYV property, descending from the top of our hill. Michele had just left for breakfast. And then a crazy looking turkey-like bird landed in a tree. I nearly ran after Michele to bring her back; it would be two full months before she would see a turaco.
Thursday, September 1, 2011
Eating Bees!
| Northern Carmine Bee-eater (Merops nubicus). Murchison Falls National Park, Uganda |
Bright blues, reds, yellows, oranges, pinks, and greens whiz by in the air. Half of the spectacle is the bright colors shared by both males and females. The other half of the spectacle is that bee-eaters catch bees in flight!
Sunday, August 28, 2011
Kings of the catch
Kingfishers use their long, sharp bills to snag their prey. As the name suggests, they can be experts at plucking fish from the water, but many kingfishers do not eat fish at all. These non-fishing kingfishers are still pros at catching invertebrates and even vertebrates (I have seen a kingfisher eat another bird in Israel!). Let's take a look at some of East Africa's spectacular kingfishers.
| The malachite kingfisher (Alcedo cristata) spends its time around marshes and swamps and catches aquatic critters. Mabamba Swamp, Uganda |
Monday, July 18, 2011
Cuckoo for Canaries!
Cuckoos and canaries have very little in common, other than a little alliteration. Both also have common cultural references (he's gone cuckoo, the canary in the coal mine) but I suspect that most people know little about them. Even as a birder, it took me a couple years to see my first cuckoo. Let's take a closer look at these "C" birds.
Canaries eat seeds, and they roam around to find food, often doing so in flocks. It is not behaviors, however, that scientists use to classify most organisms. Structural, cellular, and genetic evidence is looked at to determine where a bird is classified in relation to other birds.
Canaries are part of a much larger family of birds called "Fringillidae." And although there are no canaries or even Serinus birds in North America, there are similar birds like the house finch, purple finch, and pine siskin, among others.
What makes a bird a Fringillid then? According to Don Roberson's Bird Families of the World website, which is a go-to source for exploring bird diversity, birds of the family Fringillidae "have stout conical bills, strong skulls, large jaw muscles, and powerful gizzards. All have modified beaks for holding and shelling seeds. The seed is wedged in a special groove at the side of the palate and crushed by raising the lower jaw onto it."
Some cuckoos are host-specific, which means they target specific types of birds. Red-chested cuckoos lay their eggs in nests of scrub-robins and robin chats, Levaillant's cuckoos lay in babbler nests, diderik cuckoos lay in weaver nests, and African emerald cuckoos lay in nests of robins and small thrushes.
Thanks for reading- I hope you are now cuckoo for canaries!
Works Cited
Canaries are part of a much larger family of birds called "Fringillidae." And although there are no canaries or even Serinus birds in North America, there are similar birds like the house finch, purple finch, and pine siskin, among others.
What makes a bird a Fringillid then? According to Don Roberson's Bird Families of the World website, which is a go-to source for exploring bird diversity, birds of the family Fringillidae "have stout conical bills, strong skulls, large jaw muscles, and powerful gizzards. All have modified beaks for holding and shelling seeds. The seed is wedged in a special groove at the side of the palate and crushed by raising the lower jaw onto it."
| Not all canaries are yellow. The streaky seedeater, Serinus striolatus, is found in the highlands of Eastern Africa. "Canary" is an arbitrary common name that gets its name from the Canary islands. |
The differences in birds are one of the things that I love about seeing and studying them. Cuckoos are bigger than canaries, but a more important difference is the structure of their feet. All Passerines (an order of birds in the Domain-Kingdom-Phylum-Class-Order-Family-Genus-Species classification system) which includes the canaries, warblers, flycatchers, sunbirds, hummingbirds, and more than half the world's bird species, have three toes pointing forward and one facing back. Cuckoos have two toes pointing forward and two facing back (which for this and other reasons, places them in a different order, Cuculiformes). This is perhaps something you don't see so well in the field, but it demonstrates how much is going on with birds if you look close enough.
| We spotted this red-chested cuckoo, Cuculus solitarius, on a walk down Lake Mugesera in March. |
Cuckoos mainly eat insects. If you look at their bills, they are thin and sharp compared to the thick conical bills of the canaries. These bills are well-suited to snatching caterpillars, moths, and grasshoppers, among other bugs.
| Levaillant's cuckoo (Clamator levaillantii) has visited ASYV several times. |
Many cuckoos are brood parasites (about 40% of species worldwide). If a cuckoo species is parasitic, the adult female lays her egg in the nest of another species. The owners of this nest, if they don't reject the egg by destroying it or abandoning the nest, incubate the eggs and then feed the young bird until it has fledged (basically, a fledges when it is able to leave the nest and is no longer dependent on the parents). Sometimes the young cuckoo, directly after hatching, knocks all other objects out of the nest; these other "objects" are either baby birds or other eggs.
Some cuckoos are host-specific, which means they target specific types of birds. Red-chested cuckoos lay their eggs in nests of scrub-robins and robin chats, Levaillant's cuckoos lay in babbler nests, diderik cuckoos lay in weaver nests, and African emerald cuckoos lay in nests of robins and small thrushes.
Despite their negative impacts on their host species, cuckoos make important contributions to the ecosystems. They eat insects (including many caterpillars that decimate leaves) and serve as meals for predators. Interactions between individual species may seem quite cruel, and perhaps they are, but I enjoy overall healthy ecosystems.
Thanks for reading- I hope you are now cuckoo for canaries!
Works Cited
- Ehrlich, P, et al. "Brood Parasites." Birds of Stanford. Accessed: 18 July 2011. http://www.stanford.edu/group/stanfordbirds/text/essays/Brood_Parasitism.html
- Ehrlich, P, et al. "Passerines and Songbirds." Birds of Stanford. Accessed: 18 July 2011. http://www.stanford.edu/group/stanfordbirds/text/essays/Passerines_and_Songbirds.html
- Fanshawe, J. and Stevenson, T. Birds of East Africa. Princeton and Oxford: Princeton University Press, 2002.
- Roberson, D. "Finches: Fringillidae." Bird families of the World. Accessed 17 July 2011. http://creagrus.home.montereybay.com/fringillids.html
- Roberson, D. "Cuckoos and Allies: Cuculidae." Bird families of the World. Accessed 17 July 2011. http://creagrus.home.montereybay.com/cuckoos.html
- Ryan, P. and Sinclair, I. Birds of Africa south of the Sahara. Struik Nature: Cape Town, 2003.
Friday, July 8, 2011
Welcome to the jungle! Let's explore Nyungwe rainforest
Rainforests present a conundrum for visitors. They harbor as much biodiversity as any habitat on the planet, and yet you are unlikely to see most of their wonders.
| The sun rises over the forested mountains... what lives in these blankets of green? The pictures below show just a fraction of forest life. |
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