NOTES FOR CONTRSEUTORS Members of the Society (and non-members) are asked to follow these simple instructions when writing articles or letters for submission to the Bulletin. The Bulletin is presented six times a year in a duplicated format: the paper size is 20.5x23 cm (10x8 inches), line drawings can be reproduced but the area should not be more than 17.5x23 cm. Lettering on figures should preferably be in ‘Letraset’, neatly done in Indian ink or left blank: if the last method is followed, the lettering should be indicated on an overlaying sheet and should not be done on the figure. Figures should be prepared on good quality white writing paper and not on Bristol Board or other thick material. Whenever plants or animals are mentioned the scientific name should also be given but not in parenthesis. Trinomials should not be used unless there is good reason to do so. Author’s names of species are not required. Contributions may be typed (preferably) or written clearly and should be sent to: M. P. Clifton, Box 44486, Nairobi, Kenya. Receipt of contributions will be acknowledged. EAIJHS BULLETIN I0VEMBER/DECEM3ER 1977 COIJTERTS Lavra Spiders, . , « , , , , , . , . , , , , , New Record of Tiang in Northern Kenya , , , , Some Notes on a Pair of Captive Common Genets Caracal in Karen Pugu Hj.lls Eorest Reserve 5 Bar es Salaam . , , Pood Storage in Indian House Crows , , . , , , Identification of the Hoopoej Upup a ep op s . , Preying by fiscal Shrike on Streaky Seed eater Interesting Bird Recovery The Tale of a Skin Wasps on Aloes , , , , , , , , , . , . . . , , Record Section ,,,.,,.0000,.,.. Letters to the Editor Cov/ries on the South Kenya Coast Nest Record Scheme Book Review , , , , Society Lecture Notes Scopus Society Notes , , New Members . , Society Functions o 0 e o e o 9 e • • o o 0 e o o o a e » o t « 9 t 9 9 0 9 9 9 9 9 9 9 9 0 9 9 9 9 9 9 9 9 0 9 0 9 9 9 9 9 9 124 125 1 26 1 29 130 131 132 132 134 134 137 137 138 139 141 144 145 147 148 'LAV/K SPIDERS’ Recently several members have come to the Museum to find out about the Spiders which make si^k-lined holes in their lawns j so I thought I would write a lit tie ' about them® The Spiders concerned are in the Wolf Spiders» They are rather advanc and usually hunt by dayj creeping up All the species that I know have disp like all Spiders 5 each one trails a s it to objects in its path from time t does not hunt in the sen:e that the o do, but waits for some insect or othe heard of them catching small skinks ) can jump on it suddenly* family lycosidae, or the od and have good eyesight on their prey by stealth, enced with making a web, and ilk line behind it, touching o time. The ’Lawn Spider’ ther species in the family r small creature (l have to blunder past so that it 7 The hole itself is usually about 1 to 1o5cm across and the silk round the top is laid down by the Spider to stop loose part- icles of soil raining down on it when a large animal comes near. The silk also gives the Spider a good grip on the side of the hole. The Spider itself is quite large, being about 6cm across the legs. The female is usually much larger than the male and very much stouter. Their colour is light grey-brov/n with the jaws bright orange, as are also the bases of the front legs in some specimens. The abdomen has a weak pattern of darker brown across it. Most people when talking about Spiders want to know if they are poisonous. Though this species is very closely related to the ’Tarantula’ of Southern Europe, it should be stressed that the poison is very weak, and only one Spider is known at present to cause any worry in this part of Africa - the Black Widow Spider which is very uncommon. To go back to the ’Tarantula’ of Southern Europe, this is completely harmless and it is thought that the fits and fevers associated with it are caused by tick borne viruses which appear at the same time as the male Spiders go courting. The true 'Tarantula' is quite a small Spider and nothing at all to do with the big ’Bird-eating’ Spiders of the tropical parts of the World. V/'hen the 'lawn Spider’ reaches maturity, after about 8 moults (as was the case in Deolycosa maderiana v/hich I bred in England, a species with a leg span of about 10cm and the second largest in the family), the male begins to wander looking for a female, and often comes into houses. When the male finds a hole with a female rn , v/hich he can tell by the chemicals on the silk round the hole, he starts making a special tapping motion on the ground. This quietens the female so that he is able to approach, and 124 finally go into it to pair. After this the female usually chases the male away rather than eating him, a thing that does not happen as often as would be thought amongst Spiders, She then seals off the top of the hole, goes to the bottom and, making a thick sheet of silk, deposits the 100 or so eggs on it, covers them with silk and stands guard until they hatch. The young take about a year to reach maturity. These Spiders are quite common in the lawns around Nairooi and are almost as plentiful in the rank grass of waste places around the city, but are not so easy to see. They form an impor- tant part of the diet for the Hadada Ibis, Bostrychia hagadash and the African Hoopoe, Upupa op op s af r i c an a in one particular garden in Nairobi. It is interesting to see these birds probing dovm the holes for the Spiders which often make a bond in their tubes round a rock a few centimetres below the surface. How do the Spiders dig their holes ? Simple, they chew the soil out with their strong jaws and carry it away, M.P. Clifton, P.O. Box 40658, NAIROBI. NEW RECORD OP TIANG IN NORTHERN KENYA At about 6 p.m, on 15th June 1977 I was flying with Dr Lamp- rey from Maikona to Mt Kulal in Marsabit District, As wo flew over Gamura, a waterholo on the edge of the Chalbi Desert, we saw two animals which on close inspection proved to be Tiang, Dasmaliscus korrigum tiang. Although, of course, from the air we could not be certain that these were Tiang rather than Topi, Dasmaliscus korrigum topi, it would seem to be more likely. The nearest record of the Tiang is from Allia Bay on Lake Turkana, some 170 km to the North East, while the nearest for the Topi is from North East Mt , Elgon approximately 340 km away. Topi to the North 'West of Lake Turkana can be safely exclp.ded os possib- ilities as the lake and the Omo River are effective barriers to their movement. (Por details see Stewart and Stewart (l963)? Journal of the East Africa, Natural History Society 24 (3) and the E,A, Wildlife Society (l977) Report of the Working Group on the Distribution and Status of East African Mam.mals,) It is interesting to speculat to be at Gamura, One possibility much larger and hitherto unrecorde the edge of the Chalbi when it was pastures along its shores. The se have come from the Allia Bay popul e on how and why th is that they are a d population which a lake v/ith season cond possibility is ati on , e Tiang came relic of a lived along ally flooded that they I tend to support the latter theory since we do not know of 125 any references among the local G-abra to their occurance in the area. Also the recent y widespread and heavy rain may have enabled the Tiang to cross what would normally prove to be inhospitable to them. ^ Dr Christopher R. Field, UNESCO Arid Lands Project, P.0, Box 30592, NAIROBI. SOME NOTES ON A PAIR OE CAPTIVE COMMON CENETS The December prompted of Common duties as recent tv/o part article by Mr Prickett in the November/ 1976 and January/Pebruary 1977 Bulletins on Genets has me to recall my own experiences with a captive pair Genets, Genet ta genett a. These I kept as part of my a keeper at Melbourne Zoo, Australia in 1974. Firstly a word on their husbandry to set the scone. This was relatevely simple, indeed standardised and the same as prac- tised for other small and medium sised non-aquatic carnivores I kept at the same time such as Geoffreys Cat, Felis geof f royii , Leopard Cats, tigrina , a Tiger Cat, Dasyurus maculatus , Quolls, D^. viverinnus and a Mongoose of indeterminate taxonomic status. The Genets enclosure had dimensions of 1.5 x 4.5 x 2,2 metres, constructed of v/eld mesh and had a southerly aspect. It contained a coarse-grained sand floor, standard steel water bowl and a nest box of 80 x 30 x 30cm, The nest box was set 1,5 m above the floor and v/as reached by an arboreal freeway of stout branches. No nest:|.ng material was supplied intentionally and no attempt was made by the Genets to gather anj?- of that inadvertently introduced, of a supposedly suitable nature. They were fed and watered daily, with two starve days a week if they were in good health. Food consisted of dead rats, mice and day old chicks and regularly a special minced preparation with nutritional supplements added. My observations must, by the nature of my association with them, be limited by the short time I could spend daily in their company and the confining environment in which they lived. My introduction to the Gen check out everything in the off newly made responsible for. No I was somewhat mystified by an a promising nest box in the far my first impression was flavour of the nest box, I looked into my nose accustomed to the smell ets consisted of being told to limits section of the Zoo I was thing loath to meet my new stock, apparently empty enclosure with end. On entering the enclosure ed by the overpowering musky odour the entrance of the box and as and my eyes to the dark I noticed two pairs of eyeSj one low and the other high, blinking in turn. This revelation v/as followed by a considerable volume of hissing and an increase in stink when I tapped the side of the box to encourage the inmates to reveal themselves. I did not have long to wait as two pointed faces suddenly came in my direction at considerable speed from little distance. As I leaned back a lithe form shot past my face and another over my shoulder, taking a mouthful of my hair with it. Having always imagined Genets to be little more that spotty Ferrets, I was not disappointed, and also not a little thankful I had snibbed the door on entering. As quickly as they appeared they ascended a branch leading to the nest box and were gone. old Returning in a little while chicks I tried a more subtle armed with a pocketful of day approach. I placed a chick (these were dead of course I ) in the mouth of the nest box preparing to wait for a little action at such an invitation. There was an immediate shuffling inside as two bodies rearranged themselves, but the chick remained, and then grew impatient. Distracted Honeyeater nearby, I looked back and so shy after all I I put another in no messing around this time for as I eared into the recess of the smelly nest box with a little hissing and spitting as a probable dispute as to prior claim took place. Content at ha,ving at least invoked e. response of sorts I deposited my pocket load of chicks, and later some rats on the floor. I watched, and watched, by the alarm call of a the chick was gone. Hot its place and there was removed my hand it disapp- After having made their acquaintance for a few weeks I put their apparent shyness down more to mishandling or at best a rough and tumble relationship with keepers, and the hypodermic syringe and thermomet cr of • ve ts , than their supposed 'inherent* shyness and 'strickly' nociurnal habits. In fact I found that these inquisitive animals V/ere often active, if undisturbed by man or other large creatures, in the early morning, dusk of evening and on overcast days, coming out and ferreting around and fossicking at any changes I might have made in the enclosure. With the continuing hon-sucess of v/inning their trust by bribing them with our one link, their daily ration, I tried to watch them at the most opportune time my routine allowed, after clocking off in the evening. With only thirty minutes of view- ing time left I did not put out their food till I was ready to watch them, so I could catch a, ma.ximLim of activity. I scattered small game all over the place, sometimes hanging it from the walls or hiding it under leaf litter (v/hich had to be removed as it was considered insanitary and unneccesary by my supervisors). It v/as curious to see that they often collected the day old chicks 127 and micej sometimes two at a time and almost invariably took them back to the nest box to consume. Sometimes they picked all of these up and deposited them in the nest box before eating any- thing - though this happened only casionally. This habit often resulted in the most revolting messes of yolk (as day old chicks still have quite a proportion of yolk) glueing down mice tails and pathetic looking pink chicks legs to the nest box floor. Dead rats, as an article of Zoo Genets dietj v/ere trea- ted rather differently to smaller fry and were literally attac- ked and shaken before being consumed on the ground y only the odd incisor or tail-end remaining. On two occasions I gave my Genets live food, by way of e: