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Worfolk 2013, pp. 169–171.
Lefranc &
Worfolk 2013, p. 169.
Lefranc &
Worfolk 2013, p. 39. Lefranc,
Norbert &
Worfolk, Tim (2013). Shrikes...
- Press. (Subscription or parti****ting
institution membership required.)
Worfolk, Tim (2000)
Identification of red-backed,
isabelline and
brown shrikes...
-
Worfolk, Clayton. "Marvel's
Behind the Mask –
clayton worfolk | editor".
Archived from the
original on May 30, 2022.
Retrieved May 31, 2022.
Worfolk,...
- Grey
Shrike complex in
Europe Alula 4(1): 4 - 11 Clement, Peter, and Tim
Worfolk (1995)
Southern and
eastern Great Grey
Shrikes in
northwest Europe Birding...
-
breeds successfully in Shetland". birdguides.com.
Retrieved on 25 June 2021
Worfolk, Tim (2000)
Identification of red-backed,
isabelline and
brown shrikes...
- (Subscription or parti****ting
institution membership required.) Lefranc, Norbert;
Worfolk, Tim (1997). Shrikes. London, UK: Pica Press. p. 19. ISBN 978-1-4081-3505-1...
-
institution membership required.) Snow &
Perrins (1998) pp. 1447–1448.
Lefranc &
Worfolk (1997) p. 23.
Harris &
Franklin (2000) pp. 178–180. Clement, Peter. "Identification...
- Bibcode:2016OExpr..24A.974P. doi:10.1364/OE.24.00A974. PMID 27409970.
Worfolk,
Brian J.; Andrews, Sean C.; Park, Steve; Reinspach, Julia; Liu, Nan; Toney...
- of
Philippine birds. Part 1.
Bureau of Printing, Manila. pp. 596–599.
Worfolk, Tim (2000). "Identification of red-backed,
isabelline and
brown shrikes"...
-
illustrated by
Chris Demarest; This is the Key to the
Kingdom by
Diane Worfolk Allison; The
House that Jack Built,
pictures by
Jenny Stow 98 8 "Is This...
