This challenge will be of great interest to birders who live in Johannesburg, the East Rand and elsewhere in and around Gauteng. 400 species within this limited area, which also includes the industrial heartland of South Africa is no mean feat. It will require some dedicated birding. But it is certainly possible as there are about 440 species regularly present in the area. Bird throughout the year.
Many species are winter migrants, or only appear for a short period of time.
Good examples of late summer migrants are Carmine Bee-eater and Dusky Lark, which are both regular to the North of the area. Fairy Flycatcher is one bird which you will only find in the winter months. Visit a wide variety of localities and habitats. One of the reasons for the high bird diversity is the range of altitude, vegetation types and geology. If during the course of the year, you bird thouroughly at all the localities listed above, you will be fairly close to the 400 mark.