Sitta

Trivial name	Latin name
Eurasian nuthatch	Sitta europaea
Western rock nuthatch	Sitta neumayer
White-breasted Nuthatch	Sitta carolinensis
Velvet-fronted Nuthatch	Sitta frontalis
Blue Nuthatch	Sitta azurea
Red-breasted Nuthatch	Sitta canadensis

comparison of wing and tail configuration¹

¹ According to Hartmann (2000a, 2000b and 2016)