116 RUDOLF SÖDRRBERG, STUDIES OF THE BIRDS IN NORTH WEST AUSTRALIA. 
4. Concerning the subspecies Cacatua leadbeateri aberrans (SÖDERBERG) MATHEWS says in his work Birds of 
Australia that his description was published two mouths earlier than mine. He names it OC. leadbeateri 
mungi. On my return from Mowla Downs to Derby in Dec. 1910 I showed J. P. Rocers, MAtTHEWS” col- 
lector, my find: He has later mentioned by letter, that he wrote to Mz. MatHEws” and afterwards went to 
Mowla Downs, where one more bird was obtained. It was evidently impossible to me to publish a descrip- 
tion before my arrival at Sweden. As for the right of priority others may judge. 
Contents. 
Page 
IPRefAGe MR - sa 2 8 RIP 1 TUNER Sara Nos EE: 
Introductory. The route so ss & CR AR lr IIHAR R cen is SN EK RR RN RENEE 
The geographical conditions =. . . Ilatapile & 88 so KM Ri KN RE 
A. The climate. The savanna landscape. The ravns. and the animal-life= = 
Ornitbotopographical relations. + cc. sd c dere ffa dgr fr för RA ERE 
The savanna-landscape . . . so 6 dr SER RAR 
The outset of the rainy season and its effect on the animal- life EEE od faner 
Sunday Island; . js sc fo Sven «ROAD oss före sg ES 
Beagles bay. ss. sArsguesar 5 lönn Jörgen esbytsn el ec EG 
BI Res BundSs en FRE rg SU REN NN RE a BA fl Ae BÄ lg Sr BLA nr 2 AN IL 
Geographical features Ps än 3 ig 
The birds feathers — morphological phenomenå and the Conditiohs under Which hey moult . LS 
Birds and.reptiles i.” Ve siare dens ön dig Seed ik AA: 
The special part . 3 
Order Casuariiformes vån EN SR FRE USE RR Sr IA er Sr RE Sa 
» — Columbiformes ——< cs Ave se ae de lg se sr RE RR RA 
2” 
Id 
[FJ 
[2 
Ralliformes . 6 
> — Lariformes . Arg Ara sa sd : As 36 
ChäradrformMes ss sms de så Bs «Mer AA EET REAR SST Se 3 
GTUWSOTMÉS « erese a fe s EKA aker ER BR SE TE RE LES SR oa EE RE ESE A Sen 
ArdefOormMes: cv cc - Ao bog oo AE TS VETTSTT PET SR AT SR SES ES 
> —- ANSrVkOLMES cd mö = om ärrefse i LAR RR RE dre sg BE (EEE SED 
> — PeliCaMfOrMeS — ge oc oh fö 6 föl rn fr märg er SR NRA mL re tat er SS AN 
>> LA CCUDUTY OKNIESE me TE da ker va RESER TE ör rr ENDA 6 oc NE DG 
>  SSCriQUOrMES le & lägg & ie oss En er cl eSATA 4 OEI SLI ERA ER NNE SS 
PSUtaCcfOrMes.s = == ejer Br Je VET de frn SE TSTTRESREERIERE ya RME RARE Te ER DN Ar 0) 
COraCUfOrMEeS: > « = sa se je Leg Le Je NES FREE a ög ee RER SR EE a ASS 5 
COCCYJES = me mo me ee RA ke S mf SE fre SSA SAS KIRAN A SR lirar SU AO 
PASSCrUÖrMES om men se oe ch oe BE de RR Mogren Ra SERA STATE AN SSD 
Moulting . . 6 TT a ta TR a Raa RA ser Eg SNES 
Relation to plants (pollination) Br SR RE SER Re EE SE RA AEA oc 3 od ds IDA 
List of works relating to North West Australia etc. lä a os He fe Rog de 1A RA SENT 
Explanations of Plates” > s s os « s = a AA SNR RR RER RES EL 
Correclions . es = ss & s = > RR RR RTR RR RE 
Notes . 8 e Sd er LR INA frn rer SES er ST FELT 
Tryckt den 10 januari 1919 
Uppsala 1919. Almqvist & Wiksells Boktryckeri-A.-B. 
