The 75sh stamp is from 2009 the East Africa Natural History Society issue showing a unique African bird Great Blue Turaco.
Great Blue Turaco (Corythaeola cristata) is the largest turaco, generally ranging from 70-75 cm in length with a mass between 822-1231 grams. In the Bandundu province of the D.R.C. (formerly Zaire) the Great Blue Turaco is actively hunted for meat and feathers.The blue and yellow tail feathers are prized for making good luck talismans.
The 30sh stamp is from 2001 Crops definitives issue showing Peanuts.
The peanut (Arachis hypogaea), is a species in the legume "bean" family (Fabaceae). The cultivated peanut was likely first domesticated in the valleys of the Paraguay and Parana rivers in the Chaco region of Paraguay and Bolivia.It is an annual herbaceous plant growing 30 to 50 cm (0.98 to 1.6 ft) tall. After pollination, the fruit develops into a legume 3 to 7 cm (1.2 to 2.8 in) long, containing 1 to 4 seeds, which forces its way underground to mature. Hypogaea means "under the earth."