Run like an antelope

Thomson's gazelle (Gazella rufifrons) in Ngorongoro Conservation Area,

Tanzania. Look at all those flamingos in the background! What a life, to

run around free and enjoy the birds, without a care, except for lions,

cheetahs, leopards, and hyenas, of course.

The name antelope refers to a wide variety of mammals. Although antelopes are extremely diverse, they all share some basic characteristics.

White-bearded gnu (a subspecies of blue wildebeest (Connochaetes 

taurinus albojubatus) in Ngorongoro Conservation Area, Tanzania.

Antelopes are even-toed, hoofed mammals. They share this foot morphology with hippopotamuses, warthogs, giraffes, and deer, but none of those are "antelope."

Female eland (Taurotragus oryx) in Akagera National Park, Rwanda.

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.

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?

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!

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.

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.