| The disproportionate effect of climate change on the arrival dates of short-distance migrant birds. C Butler Ibis 145, 484-495., 2003 | 368* | 2003 |
| Population biology of the introduced Rose-ringed Parakeet Psittacula krameri in the UK CJ Butler University of Oxford, 2003 | 124 | 2003 |
| Feral parrots in the continental United States and United Kingdom: Past, present and future. CJ Butler Journal of Avian Medicine and Surgery 19, 142-149., 2005 | 118 | 2005 |
| The effect of enemy-release and climate conditions on invasive birds: a regional test using the rose-ringed parakeet (Psittacula krameri) as a case study A Shwartz, D Strubbe, CJ Butler, E Matthysen, S Kark Diversity and Distributions 15, 310-318, 2009 | 100 | 2009 |
| Global Decline in Suitable Habitat for Angiostrongylus ( = Parastrongylus) cantonensis: The Role of Climate Change EM York, CJ Butler, WD Lord PLOS ONE 9 (8), e103831, 2014 | 54 | 2014 |
| A Review of the Effects of Climate Change on Chelonians CJ Butler Diversity 2019 (11), 138, 2019 | 47 | 2019 |
| Breeding parrots in Britain C Butler British Birds 95 (7), 345-348, 2002 | 41 | 2002 |
| Distribution of the threatened lace hedgehog cactus (Echinocereus reichenbachii) under various climate change scenarios. CJ Butler, EA Wheeler, LB Stabler Journal of the Torrey Botanical Society 139, 46-55, 2012 | 39 | 2012 |
| Projected changes in climatic suitability for Kinosternon turtles by 2050 and 2070 M Butler, C. J., Stanila, B. D., Iverson, J. B., Stone, P. A. and Bryson Ecology and Evolution, 1-16, 2016 | 36* | 2016 |
| The breeding biology of Rose-ringed Parakeets Psittacula krameri in England during a period of rapid population expansion CJ Butler, W Cresswell, A Gosler, C Perrins Bird Study 60 (4), 527-532, 2013 | 33 | 2013 |
| Sexing and aging Rose-ringed Parakeets Psittacula krameri in the UK. CJ Butler, A Gosler Ringing & Migration 22, 7-12., 2004 | 20 | 2004 |
| Yellow Rails wintering in Oklahoma CJ Butler, LH Pham, JN Stinedurf, CL Roy, EL Judd, NJ Burgess, ... Wilson Journal of Ornithology 122, 385-387, 2010 | 17 | 2010 |
| Climate change winners and losers: The effects of climate change on five palm species in the Southeastern United States CJBM Larson Ecology and Evolution, 1-18, 2020 | 12* | 2020 |
| Age ratios, sex ratios, and a population estimate of Yellow Rails at San Bernard National Wildlife Refuge, Texas CJ Butler, JK Wilson, CR Brower, SR Frazee The Southwestern Naturalist 59 (3), 319-324, 2014 | 12 | 2014 |
| First nesting by blue-crowned parakeet in Britain C Butler, G Hazlehurst, K Butler British Birds 95 (1), 17-20, 2002 | 11 | 2002 |
| Assessing black rail occupancy and vocalizations along the Texas Gulf Coast CJ Butler, JB Tibbits, JK Wilson Final Report to: United States Fish & Wildlife Service and Texas Parks and …, 2015 | 10 | 2015 |
| A comparison of the origins of Yellow Rails (Coturnicops noveboracensis) wintering in Oklahoma and Texas, USA CJ Butler, JK Wilson, SR Frazee, JF Kelly Waterbirds 39 (2), 156-164, 2016 | 8 | 2016 |
| Hybridization between Black-chinned (Archilochus alexandri) and Ruby-throated (A. colubris) hummingbirds in Oklahoma ER Judd, CJ Butler, NED BATcHELDER Bulletin of the Oklahoma Ornithological Society 44 (3-4), 2011 | 7 | 2011 |
| Modelling the distribution of the dwarf palmetto (Sabal minor; Arecaceae) in McCurtain County, Oklahoma. CJ Butler, JL Curtis, K McBride, D Arbour, B Heck Southwestern Naturalist 56, 66-70., 2011 | 7 | 2011 |
| Do Citizen Science Methods Identify Regions of High Avian Biodiversity? CJ Butler, C King, DL Reinking Diversity 13 (12), 656, 2021 | 5 | 2021 |
