Continuing the monthly look at where Atlasing, or Birdmapping as it is also known, took me in February 2020 …..
I thought it best to split it into three parts as it has been a busy atlasing month during which I made a point of visiting some of Gauteng’s prime birding spots for my atlasing pursuits in the hope that it would get my birding year off to a cracking start (it worked!)
Marievale Bird Sanctuary – 26 February
This week’s choice of atlasing destination was Marievale Bird Sanctuary, situated near Nigel in south-eastern Gauteng and about 100 kms drive from our Pretoria home. I had intended to do two pentads – Marievale itself plus an adjoining pentad outside the nature reserve. After spending more time in Marievale than planned, I struggled to find an access road into the second pentad and found myself driving in circles, thanks to some confusing directions from my navigation system. A short session of “test atlasing” of a stretch of the very busy road that I eventually found, convinced me that it would be a wasted effort and a frustration, as it was by now the middle of the day – a very quiet time for birding – and I did not fancy dodging traffic for two hours.
Marievale is famous for its extensive, shallow open waters and wetlands, reedbeds and surrounding grasslands. It is also well served with bird hides and a picnic spot – all well maintained and you are guaranteed to see an excellent variety of waterfowl, wetland and grassland species in a morning’s birding.
After a slow drive from home through early morning traffic, despite starting out at 5.30 am and following some back roads, I started atlasing as soon as I entered the pentad in its north-eastern corner, still on the R42 main road between Delmas and Nigel. It took 20 minutes to get to the Marievale entrance road, by which time I had logged 21 species seen along the road – I made sure to pull off onto the wide grass verge wherever possible, as the road proved to be quite busy. Black-winged Kite, Glossy Ibis and Spotted Thick-Knee were pleasing to see as well as two Widowbird species – Fan-tailed and Long-tailed.
I spent a while at the entrance complex which has a deck overlooking some wetlands and quickly added Red-billed Teal, Cape Shoveler and Hottentot Teal, taking my total to 31 by the time I accessed the reserve proper.
My next focus was on the “powerline road” – a maintenance track below the main overhead powerlines that run through a section of the wetlands. The track is narrow and lined with reeds in places, affording views of the ponds and small lakes, most of which have abundant bird life. The reeds are a favourite haunt for warblers which provide a soundtrack of birdsong as you drive along, windows open to hear all the calls. Lesser Swamp Warblers competed with African Reed Warblers for the title of “most prolific warbler” which ended pretty much in a draw.
The shallower ponds were alive with waders, including elegant Greater Flamingoes, Wattled Lapwings, Black-winged Stilts and Spoonbills; deeper ponds were filled with waterfowl such as Teals, Yellow-billed Ducks and SA Shelducks.
At one spot an African Swamphen and a Moorhen emerged from the reeds and went about their business while I tried to get them in the same frame, each nicely posed – a tall ask indeed.
On my return trip along the track a flash of colour caught my eye – a Malachite Kingfisher, often plentiful at Marievale but on this day it was the only one I found. A Natal Spurfowl (0.5%) crossed the track ahead of me – not usually regarded as a scarce bird but this was one of only a handful of records for Marievale.
With my total now standing at 52 after two hours of atlasing I knew the pace of adding new species would slow, but I was expecting 70 plus based on my previous visits to Marievale and continued along the main access road to the picnic spot, where I enjoyed coffee and a sandwich in the hide, before entering the northern part of the reserve.
The next two hours added just 18 species but took me to my target of 70 species and was quite satisfied with my citizen scientist contribution for the day. The only mild disappointment was the lack of small waders, barring a Little Stint, due to the higher levels of the ponds and dearth of muddy flats following the good summer rains.
A Squacco Heron in the middle of the track kept me fascinated for about ten minutes while it tried to manoeuvre a small fish into a swallowing position, pushing and pulling it on the ground then picking it up in its bill and flipping it about to get it in position, dropping the fish again and repeating the moves over and over. This went on until the heron grew tired of my attention and stalked off into the reeds, fish in bill.
On the way out I found a Common Buzzard (6%) and an Amur Falcon to round off a superb morning of atlasing.
The highlight of the morning? Undoubtedly an unusual mammal that I had never seen up close before – but more about that on another occasion …….
Footnote : Where I show percentages in brackets, these refer to the relative scarcity of the species according to the pentad surveys completed to date over the ten years that the project has been running. So if 100 pentad surveys have been done to date and a species has been recorded 5 times by the observers, it will be shown as 5%. Notable species in my book are those with a % of less than 10%