ACROCEPHALUS 
posebej še za daljše časovno obdobje, 
kakršno je to v tem članku. 
Glede na število osebkov, ki se pojavljajo v 
času preleta v parku, lahko ugotovimo, da je 
Krajinski park Rački ribniki - Pozeg pomembna 
preletna točka za sivko v Sloveniji. 
SUMMARY 
Fram 1985 to 1995, the Common Pochard 
was monitored during its passage through 
Rački ribniki - Požeg Landscape Park in NE 
Slovenia. The Park encloses ten larger standing 
waters covering some 7 6 ha, currently used for 
fish f arming. 
The Common Pochard does not breed in the 
Park, although it periodically occurs there even 
in the breeding period (June). It has never been 
seen during the moulting period (July-August), 
and is very rare also in winter, when the waters 
in the Park freeze over. During migration, 
however, the Common Pochard regularly 
occurs there. The passage is more distinct in 
spring (Fig. 1). The ratio between the sexes in 
spring is 1, 71 : 1 in favour of the males (Y ates 
correction factor, Hi-square = 12.34, df = 1, 
P>0.001). 
The difference in the average number of 
individuals in a flock in spring (February-April) 
is very important indeed (Kruskal-Wallis test, Hi-
square = 9.81, df = 2, P>0.005), while in autumn 
(September-November) it is not (Kruskal-Wallis 
test, Hi-square = 3.63, df = 2, P>0.05). The 
difference in size of the flocks is significant 
during the entire migration period (Kruskal-
Wallis test, Hi-square = 13.38, df = 5, P>0.01), 
while during spring and autumn periods it is 
clearly not (Mann-Whitney U test, U = 1045.5, 
P>0.5). 
There are very few data on the Common 
Pochard from migration period, not only from 
Slovenia but also from the entire Central 
Europe, particularly for longer periods of tirne 
than the one dealt with in this article. 
In view of the number of individuals occur-
ring at the Park during migration period, it can 
be concluded that Rački ribniki - Požeg Land-
scape Park is an important migratory station for 
the Common Pochard in Slovenia. 
Milan Vogrin, Hotinjska cesta 108, 2312 
Orehova vas 
114 
XIX - 89 - 1998 
Iz ornitološke beležnice 
From the ornithological 
notebook 
BELA ŠTORKLJA Ciconia ciconia 
WHITE STORK - Nest from 1994, but 
nesting successfull only in 1996 and 1998, 
between Vojnik and Celje 
Bela štorklja gnezdi večinoma v seve-
rovzhodnem in jugovzhodnem delu Slove-
nije, drugod lahko vidimo posamezne 
osebke predvsem v času preleta, ko se za 
kratek čas ustavijo in si iščejo hrano. 
Bil sem zelo presenečen, ko sem v letu 
1997 ob magistralni cesti med Vojnikom in 
Celjem opazil na električnem drogu gnez-
do bele štorklje. Na njem je bila tudi 
odrasla štorklja. 
Domačina, ki stanujeta v bližini, sta 
povedala, da sta štorklji pričeli graditi 
gnezdo že v letu 1994, vendar prva leta 
ni bilo mladičev . Leta 1996 pa so bili v 
gnezdu štirje (4) mladiči. Eden je kasneje 
padel z gnezda in poginil, trije pa so 
uspešno poleteli. 
Leta 1997 se je na gnezdu zadrževala 
ena sama bela štorklja, zato tudi ni bilo 
mladičev. 
7. aprila 1998 sem na gnezdu zopet 
opazil belo štorkljo. Domačina, ki stanuje-
ta, v hiši poleg gnezda, sta mi povedala, 
da se je spomladi prvi vrnil samec, 
štirinajst dni za njim pa samica. Izvalili so 
se trije mladiči, vendar je eden padel iz 
gnezda in~poginil. Druga dva sta se srečno 
speljala. Storkl ji sta se večinoma prehra-
njevali na bližnjem travniku. Po mnenju 
domačinov sta se hranili tudi z rdečimi 
polži, ki jih je bilo poslej manj. 27. avgusta 
so vse štiri štorkl je odletele iz domačega 
kraja. Davorin Vrhovnik, Vitanje 106, 
3205 Vitanje 
PLEVICA Plegadis falcinellus 
GLOSSY IBIS - 2 adults feeding on 5th 
May 1997 at Ormož waste water basins 
Kot že tolikokrat prej sem se tudi tega 
lepega jutra, dne 5.5.1997, odpravil na 
teren na Ormoško jezero in bližnje bazene 
za odpadne vode.