Table 1.
Sample of nestlings that were injected with phytohaemagglutinin (PHA), bled, both injected and bled, or neither bled nor injected from 2004 to 2013
| 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Injected only | 0 | 0 | 265 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 282 |
| Bled only | 14 | 249 | 0 | 0 | 14 | 215 | 651 | 0 | 205 | 139 | 1487 |
| Injected and bled | 435 | 771 | 954 | 316 | 424 | 304 | 110 | 1135 | 912 | 1084 | 6445 |
| Neither bled nor injected | 1701 | 695 | 796 | 1997 | 2095 | 2098 | 1310 | 631 | 338 | 277 | 11,938 |
| Total | 2150 | 1715 | 2015 | 2313 | 2550 | 2617 | 2071 | 1766 | 1455 | 1500 | 20,152 |