A "facultative nomad" is a creature that lives a settled life when it can, but moves around when required. The phrase may be applied to birds, bugs, or even people.
The description fits the Yellow-billed stork (Mycteria ibis) of sub-Saharan Africa. This big bird is found around water, particularly in wetlands and mudflats. Because of their wading and feeding tactics, Yellowbills avoid deep water. As long as food is plentiful they hang out. Larger patterns of migration remain unstudied and unclear.
I spotted this gang lingering in some reeds in northwest Tanzania.
Wander over to Africa and safari with us. Our 2026 offerings are full, but we are angling for 2027.
Red-faced
Have you ever wondered why some birds have featherless skin around their faces? This feature serves several purposes. First it is hygienic (and easier to keep clean). This is useful for carrion-eaters (like vultures) or wader-hunters like this yellow-billed stork (Mycteria ibis). Second, it communicates. When it is ready to breed, the facial skin of this stork turns deeper red, the color of the yellow bill intensifies, the legs turn bright pink, and even the feathers gain a pinkish tinge. Third, and finally, featherless skin helps dissipate heat. I'm not sure that's a big deal with stork faces (!), but it has been noted as a factor with their legs.
All in all, it's a brilliant design.
The yellow-billed stork is commonly found in East Africa. I photographed this one in Tanzania.
If you want to see a yellow-billed stork for yourself, join us next year on safari!
Falsetto Screamer
A couple of Yellow-billed storks (Mycteria ibis) for your Thursday morning. I found this pair hanging out by a pond in Tarangire National Park, Tanzania.
This species is generally non-vocal, but can "utter hissing falsetto screams during social displays."
Sounds like Facebook.
