Daniel J. Field:
White-breasted Nuthatch (Sitta carolinensis), New Haven, Connecticut
Daniel J. Field:
Red-breasted Nuthatch (Sitta canadensis), Maple Valley, Washington
Daniel J. Field:
White-breasted Nuthatch (Sitta carolinensis), New Haven, Connecticut
Daniel J. Field:
Western Rock Nuthatch (Sitta neumayer), Athens, Greece
Daniel J. Field:
White-breasted Nuthatch (Sitta carolinensis), New Haven, Connecticut
Daniel J. Field:
Eurasian Nuthatch (Sitta europaea), Royal Victoria Park, Bath, Somerset, United Kingdom
Daniel J. Field:
Velvet-fronted Nuthatch (Sitta frontalis), Tai Po Kau, Hong Kong
Daniel J. Field:
Eurasian Nuthatch (Sitta europaea), Debrecen, Hungary
Daniel J. Field:
Pygmy Nuthatch (Sitta pygmaea), Conifer, Colorado
Daniel J. Field:
Pygmy Nuthatch (Sitta pygmaea), Conifer, Colorado
Daniel J. Field:
Eurasian Nuthatch (Sitta europaea), Bath, Somerset, United Kingdom
Daniel J. Field:
Velvet-fronted Nuthatch (Sitta frontalis), Tai Po Kau, Hong Kong
Daniel J. Field:
Pygmy Nuthatch (Sitta pygmaea), Conifer, Colorado
Daniel J. Field:
Western Rock Nuthatch (Sitta neumayer), Athens, Greece
Daniel J. Field:
Red-breasted Nuthatch (Sitta canadensis), Maple Valley, Washington, United States
Daniel J. Field:
Eurasian Nuthatch (Sitta europaea), Babraham, Cambridgeshire, United Kingdom
Daniel J. Field:
Eurasian Nuthatch (Sitta europaea), Babraham, Cambridgeshire, United Kingdom
Daniel J. Field:
Velvet-fronted Nuthatch (Sitta frontalis), Sepilok, Sabah, Malaysia
Daniel J. Field:
Velvet-fronted Nuthatch (Sitta frontalis), Danum Valley, Sabah, Malaysia