A high incidence of non-cavity nesting in an introduced population of House Sparrows suggests that the species should not be constrained by cavity-nest site availability

Table 1 The characteristics of vegetation used by House Sparrows to nest in

Vegetation characteristics	Mean	SEM	Range	n
Trunk diameter at breast height (cm)	3.63	2.68	0.2–17	110
Clear bole height (m)	0.54	0.06	0–3.5	131
Canopy height (m)	4.31	0.35	0.1–23	131
Canopy missing (%)	25	1.56	10–90	131
Canopy volume (m³)	47.3	6.9	1.1–263.1	131

ISSN: 2053-7166