Table 3.

Results from a linear mixed effects model examining predictors of nest sizes of blue tits (Cyanistes caeruleus) in Wytham Woods, Oxfordshire, including compartment, year and female identity. This analysis was run on a subset of data where females bred more than once in the study period but did not reuse the same nest box (n = 149 nests and 79 females). This model had an R² of 0.615.

	estimate ± s.e.		T-value
intercept	0.329 ± 0.019		17.14
random effect		Chi d.f.	χ2	p
female ring number		1	7.55	0.006
compartment		1	6.18	0.013
year		1	0.01	0.905