EEP Crowned pigeon number 4

EEP STUDBOOK CROWNED PIGEONS
Comparison between different types of enclosures
It is possible to divide the seven enclosures into three categories: the very rich environment of
Burgers’ Bush, the very small cage without any enrichment in Rotterdam Zoo, and, finally,
the other five enclosures of medium size and furnishing (the two enclosures at Amsterdam
Zoo, the two at Alphen a/d Rijn birdpark and the enclosure in Burgers’ Breeding Center). The
figure below shows the average time budgets of the three types of enclosures.
The crowned pigeons in the large
(rich) environment showed
significantly (F(2,13)= 3,91 P =
0.0469) less care behaviour than the
birds in the small and medium
environment. The birds in the small
cage showed marginal significant
(F(2,13)=3.38; P=0,0656) more
metabolic behaviour than in the other
types husbandry. In the spacious
environment of Burger’s Bush the
birds showed significantly
(F(2.13)=5,63; p=0.0174) more “other
Percentage of time spent
8 0
7 0
6 0
5 0
4 0
3 0
2 0
1 0
0
104
Space
Time
Sex
Socpos
S m all M edium Large
behaviour” than in the other systems, but also more negative social behaviour than their
congeners in the more restricted environments. Finally it was found that crowned pigeons in
the restricted environments spent significantly less time conducting behaviour in space
(F(2.13)=3,16; p=0,0762).
Correlation between behaviour of male and female crowned pigeons
Below is described if, and how, the behaviour of the male and female from a pair of crowned
pigeons are correlated to each other. The types of behaviour are listed in the table below, and
the correlation coefficients are filled in, if they are significantly (n=38-48; p