'Ansorge''s Greenbul Andropadus ansorgei, new to Uganda'

2 Pages·2002·1.4 MB·

by  Nik Borrow

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distributionmaps inFry etah andCleere&Nurney2 2. Cleere, N. andNurney, D. 1998. Nightjars. A Guide
,
no records can betraced3and this appears tobe the toNightjarsandRelatedNighthirds. Robertsbridge:
first documented record in the country. As I did not Pica Press.
see it again, despite my continued presence at the 3. Dowsett, R.J. and Dowsett-Lemaire, F. (eds) 1993
site, regularly driving tracks at night, it may have AAfrCootnrtorpiibcuatliaonndtoMtahleaDgiastsryiBbiurtdiso.nTaanudraTcaoxRoensoemayrcohf
been a passage migrant.
Report No. 5. Liege: Tauraco Press.
A1.cknowledgement 4. Fry,C.H.,Keith,S.andUrban,E.K.(eds)1988. TheBirds
ofAfrica.Vol3-London,UK:AcademicPress.
Ron Demey encouraged me to write this note and 3. Ottosson,U.,Bengtsson,D.,Gustafsson.R..Hall.P..
commentedonthemanuscript. Hjort,C.,Leventis,A.P.,Neumann,R.,Pettersson,J..
Rhonnstad,P.,Rumsey,S.,Waldenstrom.J.andYelmala.
References W.2002.NewbirdsforNigeriaobservedduringtheLake
Borrow, N. and Demey, R. 2001. BirdsofWestern ChadBirdMigrationProject.Bull.ABC9:32-55.
Africa. London, UK: A. & C. Black. Nazinga GameRanch, 01 BP6625Ouagadougou 01.
BurkinaFaso. E-mail:[email protected].
Ansorge’s Greenbul Andropadus ansorgei,
new to Uganda
NikBommfcmdRonDemef7
LesauteursrapportentladecouverteduBulbuld’AnsorgeAndropadusansorgeienOuganda.Bienquelapresence
del’especedansleParcNationaldeBwindiestsoupgonneedepuis1992.lorsquelesvocalisationscaracteristiques
del’especefurententenduespourlapremierefois,cenestqu'enaout2001quececiapuetreconfirmepar
l’observationvisuelled’unoiseaurepondantvigoureusementalarepassedesonchant.L’espece,quipeut
facilementetreconfondueavecleBulbulgracileA gracilisestprobablementcommunedanslepare.
. ,
O
n 12November 1992, RD, Lincoln Fishpool and thatis,however,muchshorterandmuted.Thestatement
JohnMiskellheardthetypicalrattlingcallofAnsorge’s inZimmermaneta thatgracilishasa‘palebrown'vent
GreenbulAndropadusansorgeiatKitahurira,Bwindi further confused NB, as this did not match his West
ImpenetrableNationalPark,westUganda.Asmallgreenbul Africanexperienceofthespecies.ThoughKeithetahalso
wasbrieflyseenintheuppermid-leveloftheforestedge statethatA.gracilishas‘pale-brownundertail-coverts',
butitsunderpartscolorationcouldnotbeascertained.On examination ofskins at the Natural HistoryMuseum
plumage characters alone, it therefore could not be (Tring)revealedthatthesearebetterdescribedasyellow-
separatedfromtheverysimilarandlocallynotuncommon ochre,mergingintoyellowonthebelly,whereasinboth
LittleGreyGreenbulA gracilis.However,asthedryrattle racesofA.ansorgeiinominateandkavimndensis)theginger-
.
is,intheobservers’fieldexperience,nevermadebyLittle colouredundertail-covertsandflankssurroundthegreyish
Grey Greenbul, RD and LF were certain of the belly,withnohintofyellowintheplumage.SkinsofA.g.
identification,beingfamiliarwithbothspecies’vocalisations gracilismdextremadieracesoccurringinWestAfrica,and
,
fromelsewhereinAfrica,especiallyYapoForest,Cote ofA.g.ugandae,knownfromtheeasternDemocratic
d’Ivoire.TheywereawarethatAnsorge’sGreenbulwas RepublicofCongotowestKenya,wereverymuchalike,
notontheBwindi5oreventheUgandalist27but,asgood withoutplumagedifferencesthatwouldbenoticeablein
viewshadnotbeenobtained,preferredtoawaitfurther thefieldandallhavingayellowishventandbelly.
evidencebeforeclaiminganadditiontothecountry’s On2August2001NBagainheardthedryrattlealong
avifauna. themaintrackatBuhomaandbrieflysawtwobirdswith
On4August1999NBobservedseveralsmallgreenbuls thegingeryventandflankstypicalofansorgei butthey
,
resemblingA.ansorgeiandmakingthedryrattlingcallin rapidlydepartedanddidnotrespondtoplaybackofa
themid-canopyalongthemaintrackatBuhoma,Bwindi. recordingoftheratdemadebyChappuis3inCameroon.In
However,asheknewthatonlyAgradlishadbeenrecorded additiontothedryrattle,A. ansorgeialsoproducesa
inUganda,hespeculatedthatthe. rattleascribedtoansorgei distinctivethree-notewhistle.NBlaterheardthiswhistle
byFishpool etahwasperhapsalsomadebygracilis. andthevocalisingbirdrespondedvigorouslytoplayback
CameroonSombreGreenbulA.curvirostriswasexcluded ofanidenticalrecording,madebyChappuis3 coming
,
byitslargersize,plainerappearance,lessobviousbroken directlytothesourceofthesoundandaffordingexcellent
eye-ringanditsvocalisations,whichalsoincludearattle views. Thelackofyellowontheunderpartsandthe
140-BullABC Vol9No2 Discoveries
:
gingeryventandflankswereobvious.Theheadandthroat 2. Britton,P.L. (ed)1980. BirdsofEastAfrica.Nairobi:
wereolive-greyandtherewasanarrowbutobviouswhite East Africa Natural HistorySociety.
eye-ring.NBconcludedthatitwasindeedansorgei.Tape- 3. Chappuis, C. 2000. African BirdSounds: Birds of
recordingsofthesongweremadebyAdamRiley. North, WestandCentralAfrica andNeighbouring
Ansorge’s Greenbul is an uncommon to locally Atlantic Islands. London, UK: British Library Na-
commonforestresidentinwestGuineatoTogoandfrom tional Sound Archive & Paris: Societe d’Etudes
Omithologiques de France.
Nigeria to south-west Central African Republic and
4. Fishpool,L.D.C.,Demey,R.,Allport,G.andHayman,
DemocraticRepublicofCongo,withadisjunctpopulation,
P.V.1994.Notesonthefieldidentificationofthebulbuls
dSteastcursiabenddadsiastsreipbaurtaitoenraarceeokbasvciurroenddebnysicso.nifnuwseisotnKweintyhat1h,6e. (38P.ycnonotidae)ofUpperGuinea.Part1.Bull.ABCl 32-
morecommonandwidespreadLittleGreyGreenbul.We 5. Kalina, J. and Butynski, T.M. 1992. Bird List of
suspectthatAnsorge'sGreenbuliscommoninBwindi. Impenetrable(Bwindi)ForestNationalPark. Kam-
1. pala: WWF & CARE International.
Acknowledgements 6. Keith,S.,Urban,E.K.andFiy,C.H.(eds)1992.TheBirds
NB’sobservationsweremadewfliileleadingBirdquest ofAfrica.Vol4.London,UK:AcademicPress.
tours. AlfredTwinomujuni andAdamRileyprovided 7. Short, L.L., Horne,J.F.M. and Muringo-Gichuki, C.
assistanceinthefield,andLincolnFishpoolcommented 1990. Annotated Check-list of the Birds of East
onthemanuscript,"f Africa. Los Angeles: Proc. Western Found. Vert.
Zool., 4 (3).
References 8. Zimmerman,D.A.,Turner,D.A.andPearson,D.J.1996.
Birds ofKenya and northern Tanzania. London,
Borrow, N. and Demey. R. 2001. BirdsofWestern UK: A. & C. Black.
Africa. London, UK: A. & C. Black.
“Flat5, 63-67StGeorge’sDrive,Pimlico, LondonSW1V
4DD, UK. E-mail: [email protected].
hVanderHeimstraat52, 2582SBDenHaag, TheNeth-
erlands. E-mail: [email protected].
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