Untitled, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © baobao
IMGP3101c Chaffinch, Barnwell C.P, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP3236c Blue Tit, Barnwell, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP2895c Marsh Tit, Barnwell, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP3660c Great Tit, Barnwell, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
descalza en la calzada, RICOH PENTAX K-1, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Juan Ignacio Llana Ugalde
Better View, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
IMGP2680c Nuthatch male in, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP2703c Nuthatch male in, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP2665c Nuthatch male in, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP0329a Long-tailed Tit, RSPB, RICOH PENTAX K-3 II, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
Pure Speed, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Winter Hardship, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Time to Go North, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
IMGP1345c Treecreeper, Barnwell Country, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1317c Treecreeper, Barnwell Country, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1394c Treecreeper, Barnwell Country, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1043c Treecreeper, Barnwell Country, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1390d Treecreeper, Barnwell Country, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1091c Treecreeper, Barnwell Country, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1219c Marsh Tit, Barnwell, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP0893c Great Tit, Barnwell, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
IMGP1178c Chaffinch, Barnwell C.P, RICOH PENTAX K-3, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Bob Chappell
Brown-headed Cowbird, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Spring Migration, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Springtime!!!, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
American Avocet, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Cinnamon Teal, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Spring is in the, Pentax K-5 II S, Sigma 150-500mm F5-6.3 APO DG OS HSM
500px.com © Barry Giles
Bell's Sparrow, RICOH PENTAX K-3 II, Sigma 150-500mm F5-6.3 APO DG OS HSM
flickr.com © Daniel Arndt