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EUROPEAN STUDBOOK CROWNED PIGEONS<br />
4.1 Summary of the management data for Goura victoria 2000-<strong>2008</strong><br />
Age distribution<br />
The age of 131 individuals (73.5 males and 57.5 females) in the current population was known on<br />
1 <strong>December</strong> <strong>2008</strong>. There were 5 male specimens and 4 female specimens of unknown age.<br />
Current Population size<br />
The current population as of 1 <strong>December</strong> <strong>2008</strong> of the Goura victoria species which participate in<br />
the ESB programme consists of 72.52.8 (Total: 132).<br />
Number of births and deaths<br />
Births Deaths<br />
2000 4 8<br />
2001 13 15<br />
2002 12 9<br />
2003 10 19<br />
2004 17 10<br />
2005 15 9<br />
2006 15 8<br />
2007 25 17<br />
<strong>2008</strong> 12 9<br />
Age of individuals at death during the period 2000-<strong>2008</strong><br />
0-30d 30d-1y 1-5y 5-10y 10-15y 15-20y 20-25y 25y + Total<br />
37 11 16 17 15 2 0 1 99<br />
37% 11% 16% 17% 15% 2% 0% 1% 100%<br />
From 19 pigeons the age is estimated based on date of arrival, thus the age at death could be higher<br />
in reality. The 0-30 day group comprised 37% of all deaths. Less dan 20% of the Goura victoria<br />
had become older than 10 years.<br />
Transfers<br />
Transfers<br />
2000 14<br />
2001 17<br />
2002 8<br />
2003 16<br />
2004 7<br />
2005 9<br />
2006 9<br />
2007 13<br />
<strong>2008</strong> 14<br />
92
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