Table 2:
Incidence of siblings from a breeding attempt surviving for more than 14 days and incidence of both nestlings fledging
| Year | Coomallo Creek | Manmanning | Tarwonga | Moornaming | Nereeno Hill | ‘Midlands’ | ‘Great Southern’ |
|---|---|---|---|---|---|---|---|
| 1969 | 11/0/0 | 6/0/0 | 13/1/0 | 7/0/0 | |||
| 1970 | 29/1/1 | 18/0/0 | 15/3/0 | 18/1/0 | |||
| 1971 | 64/1/0 | 23/3/0 | 5/2/0 | ||||
| 1972 | 74/2/2 | 14/1/0 | |||||
| 1973 | 77/1/0 | 16/0/0 | |||||
| 1974 | 78/2/2 | 13/1/0 | |||||
| 1975 | 91/2/2 | 12/1/0 | 8/0/0 | ||||
| 1976 | 69/2/1 | 6/0/0 | 2/0/0 | ||||
| 1977 | 40/1/1 | 2/0/0 | |||||
| 1978 | 38/2/? | 3/0/0 | |||||
| 1979 | 4/0/0 | ||||||
| 1980 | 2/0/0 | ||||||
| 1981 | 38/9/0 | ||||||
| 1982 | 46/2/? | ||||||
| 1983 | 41/6/? | ||||||
| 1984 | 39/2/? | ||||||
| 1985 | 46/4/? | ||||||
| 1986 | 52/4/? | ||||||
| 1988 | 47/3/? | ||||||
| 1989 | 44/2/? | ||||||
| 1990 | 53/2/? | ||||||
| 1994 | 32/2/? | ||||||
| 1996 | 37/1/? | 21/1/0 | |||||
| 1997 | 9/1/1 | ||||||
| 1998 | 9/1/0 | ||||||
| 2003 | 7/0/0 | 31/0/0 | |||||
| 2005 | 10/0/0 | ||||||
| 2006 | 14/0/0 | ||||||
| 2007 | 17/0/0 | ||||||
| 2008 | 19/1/? | 26/5/? | |||||
| 2009 | 41/6/6 | 13/0/0 | 13/2/? | ||||
| 2010 | 49/5/5 | 9/0/0 | 17/3/? | ||||
| 2011 | 53/2/2 | 6/0/0 | 15/4/? | ||||
| 2012 | 76/6/6 | 8/0/0 | 5/3/3 | ||||
| Total | 1272/70/? | 108/6/0 | 33/6/0 | 25/1/0 | 21/0/0 | 166/4/? | 76/17/? |
The first number is the number of breeding attempts. The second number is the number of nests with siblings. The third number is the number of nests where both siblings fledged. ‘?’ indicates that no data are available on fledging history for that season.