Publications

The Primary Source is the Bird Conservancy’s print newsletter.

Fall/Winter 2015
Spring/Summer 2015
Fall/Winter 2014
Spring/Summer 2014
Fall/Winter 2013
25th Anniversary Brochure
Spring/Summer 2013
August 2012
May 2012
November 2011
August 2011
April 2011
January 2011
September 2010
June 2010
March 2010
December 2009
September 2009
July 2009
March 2009
December 2008
October 2008
July 2008
April 2008
July 2007
March 2007

Colorado Bird Observatory Newsletters
Winter 1989

2022:

Duchardt CJ, DJ Augustine, LM Porensky, JL Beck, JD Hennig, DW Pellatz, JD Scasta, LC Connell, AD Davidson. 2022. Disease and weather induce rapid shifts in a rangeland ecosystem mediated by a keystone species (Cynomys ludovicianus). Ecological Applications https://doi.org/10.1002/eap.2712

USDA Forest Service Rocky Mountain Research Station. 2022. Birds & burns: can prescribed fires limit wildfire severity while maintaining fire’s ecological importance to bird species?

Perez-Ordoñez DJ, M Titulaer, MD Correll, EH Strasser, F Baeza-Tarin, RL Martin, and LA Harveson. 2022. The role of temperature and microclimate in the survival of wintering grassland birds. Avian Conservation and Ecology 17 (1):1. https://doi.org/10.5751/ACE-02010-170101

Latif QS, JB Cannon, EJ Chabot, RA Sparks. 2022. Simulated treatment effects on bird communities inform landscape-scale dry conifer forest management. Ecological Applications https://doi.org/10.1002/eap.2555.

Saab VA, QS Latif, WM Block, JG Dudley. 2022. Short-term benefits of prescribed fire to bird communities of dry forests. Fire Ecology https://doi.org/10.1186/s42408-022-00130-x.

Pavlacky Jr. DC, AW Green, TL George, R Iovanna, AM Bartuszevige, MD Correll, AO Panjabi, TB Ryder. 2022. Landscape-scale conservation mitigates the biodiversity loss of grassland birds. Ecological Applications https://doi.org/10.1002/eap.2548

Hedenström A, RA Sparks, G Norevik, CWoolley, GJ Levandoski,  S Åkesson. Moonlight drives nocturnal vertical flight dynamics in black swifts. 2022. Current Biology https://doi.org/10.1016/j.cub.2022.03.006

2021:

Latif QS, VA Saab, JG Dudley. 2021. Prescribed fire limits wildfire severity without altering ecological importance for birds. Fire Ecology. https://doi.org/10.1186/s42408-021-00123-2

“5Q with Tammy VerCauteren” 2021. Interview excerpt from Colorado Field Ornithologists Colorado Birds.  Vol. 55 No. 4.

Pavlacky DC, CA Hagen, AM Bartuszevige, R Iovanna, TL George, DE Naugle. 2021. Scaling up private land conservation to meet recovery goals for grassland birds. Conservation Biology. https://doi.org/10.1111/cobi.13731

Bernath-Plaisted JS, AO Panjabi, NA Guido, KD Bell, N Drilling, EH Strasser, SK Johnson, MD Correll. 2021. Quantifying multiple breeding vital rates in two declining grassland songbirds. Avian Conservation and Ecology 16:19. https://doi.org/10.5751/

Timmer J, CY Tipton, RA Bruegger, DJ Augustine, CPK Dickey, ME Fernández-Giménez, CL Aldridge. 2021. Integrating wildlife count models with state-and-transition models to enhance rangeland management for multiple objectives. Rangeland Ecology & Management 78:15-25. https://doi.org/10.1016/j.rama.2021.04.005.

Wilmer H, T Schulz, ME Fernández-Giménez, JD Derner, LM Porensky, DJ Augustine, J Ritten, A Dwyer, R Meade. 2021. Social learning lessons from Collaborative Adaptive Rangeland Management. Rangelands https://doi.org/10.1016/j.rala.2021.02.002.

Pilliod DS, DC Pavlacky, ME Manning, JB Dinkins, M Creutzburg, MJ Holloran, EJ Kachergis, AP Monroe, SP Finn, MJ Germino, P Griffin, SE Hanser, K Newlon, LA Wiechman. 2021. Adaptive management and monitoring. Pages 223 – 238 in Remington, TE, PA Deibert, SE Hanser, DM Davis, LA Robb, and JL Welty (editors), Sagebrush Conservation Strategy: Challenges to Sagebrush Conservation, Open-File Report 2020-1125, U.S. Department of Interior U.S. Geological Survey, 364 pp.

2020:

Bankert AR, EH Strasser, CG Burch, MD Correll. 2000. An open-source approach to characterizing Chihuahuan Desert vegetation communities using object-based image analysis. Journal of Arid Environments https://doi.org/10.1016/j.jaridenv.2020.104383

Dwyer JF,  AM Dwyer. 2020.  The Blue Vesper: Ecology and conservation of the red-footed falcon. Journal of Raptor Research 54: 332-333. https://doi.org/10.3356/0892-1016-54.3.332

Fremgen-Tarantino MR, PJ Olsoy, GG Frye, JW Connelly, AH Krakauer, GL Patricelli, J Sorensen Forbey. 2020. Assessing accuracy of GAP and LANDFIRE land cover datasets in winter habitats used by greater sage-grouse in Idaho and Wyoming, USA. Journal of Environmental Management https://doi.org/10.1016/j.jenvman.2020.111720

Hagen CA, JD Carlisle, FE Hornsby, ME Houts, LL McDonald, DC Pavlacky Jr. 2020. Multiscale occupancy of the Lesser Prairie-Chicken: the role of private lands in conservation of an imperiled bird. Avian Conservation and Ecology v15. http://www.ace-eco.org/vol15/iss2/art17/

McNitt DC, RS Alonso, MJ Cherry, ML Fies, MJ Kelly. 2020. Influence of forest disturbance on bobcat resource selection in the central Appalachians. Forest Ecology and Management DOI: 10.1016/j.foreco.2020.118066

McNitt DC, RS Alonso, MJ Cherry, ML Fies, MJ Kelly. 2020. Sex-specific effects of reproductive season on bobcat space use, movement, and resource selection in the Appalachian Mountains of Virginia. PloS one DOI: 10.1371/journal.pone.0225355

Cross TB, QS Latif, JG Dudley, VA Saab. 2020. Lewis’s woodpecker nesting habitat suitability: Predictive models for application within burned forests. Biological Conservation 253 https://doi.org/10.1016/j.biocon.2020.108811

Latif QS, RL Truex, RA Sparks, DC Pavlacky Jr. 2020. Dry conifer forest restoration benefits Colorado Front Range avian communities. Ecological Applications doi:10.1002/eap.2142. Erratum

Latif QS, VA Saab, JG Dudley, A Markus, K Mellen-McLean. 2020. Development and evaluation of habitat suitability models for nesting white-headed woodpecker (Dryobates albolarvatus) in burned forest. PLoS ONE 15(5):e0233043. https://doi.org/10.1371/journal.pone.0233043

Dwyer JF, RK Murphy, DW Stahlecker, AM Dwyer, CW Boal. 2020. Golden eagle perch-site use in the U.S. Southern Plains: understanding electrocution risk. Journal of Raptor Research 54:126-135.

Fremgen-Tarantino MR, JJ Peña, JW Connelly, J Sorensen Forbey. 2020. Winter foraging ecology of greater sage-grouse in a post-fire landscape. Journal of Arid Environments 178 https://doi.org/10.1016/j.jaridenv.2020.104154

Latif QS, JS Ivan, AE Seglund, DL Pavlacky, RL Truex. 2020. Avian relationships with bark beetle outbreaks and underlying mechanisms in lodgepole pine and spruce-fir forests of Colorado. Forest Ecology and Management, https://doi.org/10.1016/j.foreco.2020.118043

Green AW, HR Sofaer, DL Otis, NJ Van Lanen. 2020. Co‐occurrence and occupancy of mourning doves and Eurasian collared‐doves. Journal of Wildlife Management doi:10.1002/jwmg.21835.

Campos BR, QS Latif, RD Burnett, VA Saab. 2020. Predictive habitat suitability models for nesting woodpeckers following wildfire in the Sierra Nevada and Southern Cascades of California. The Condor. https://doi.org/10.1093/condor/duz062

2019:

Strasser EH, I Ruvalcaba-Ortega, A Peña-Peniche, AO Panjabi, JH Martínez-Guerrero, R Canales-del-Castillo, MD Correll. 2019. Habitat and space use of wintering Sprague’s Pipits (Anthus spragueii) in northern Mexico. The Wilson Journal of Ornithology 131:472-485. https://doi.org/10.1676/18-17

Youngberg EN, AR Bankert, AO Panjabi, RY Conrey, A Meyer, MD Correll. 2019.  Southward breeding range expansion of the Baird’s Sparrow. The Ecology Society of America – The Scientific Naturalist e02872.

Rosenberg KV, AM Dokter, PJ Blancher, JR Sauer, AC Smith, PA Smith, JC Stanton, AO Panjabi, L Helft, M Parr, PP Marra. Decline of the North American Avifauna. 2019. Science 366:120-124. DOI: 10.1126/science.aaw1313

Watson JW, U Banasch, T Byer, DN Svingen, R McCready, D Hanni, and R Gerhardt. 2019. First-year migration and natal region fidelity of immature Ferruginous Hawks. Journal of Raptor Research 53:266-275.

Parker RA, CJ Duchardt, AM Dwyer, C Painter, AK Pierce, TJ Michels, and MB Wunder. 2019. Trophic ecology warrants multispecies management in a grassland setting: proposed species interactions on black-tailed prairie dog colonies. Rangelands 41:135-144.

Timmer JM, CL Aldridge, and ME Fernandez-Gimenez. 2019. Managing for multiple species: greater sage-grouse and sagebrush songbirds. Journal of Wildlife Management 83:1043-1056.

Wilsey C, L Taylor, B Bateman, C Jensen, N Michel, A Panjabi, and G Langham. 2019. Climate policy action needed to reduce vulnerability of conservation-reliant grassland birds in North America. Conservation Science and Practice vol. 1. https://doi.org/10.1111/csp2.21

Connell LC, LM Porensky, AD Chalfoun, and JD Scasta. 2019. Black-tailed prairie dog, Cynomys ludovicianus (Sciuridae), metapopulation response to novel sourced conspecific signals. Animal Behaviour 150:189-199.

Stanton JC, P Blancher, KV Rosenberg, AO Panjabi, and WE Thogmartin. 2019. Estimating uncertainty of North American landbird population sizes. Avian Conservation and Ecology 14. https://doi.org/10.5751/ACE-01331-140104

Connell LC, LM Porensky, and JD Scasta. 2019. Prairie dog (Cynomys ludovicianus) influence on forage quantity and quality in a grazed grassland-shrubland ecotone. Rangeland Ecology and Management 72:36-373.

Green AW, DC Pavlacky Jr, and TL George. 2019. A Dynamic Multi-Scale Occupancy Model to Estimate Temporal Dynamics and Hierarchical Habitat Use for Nomadic Species. Ecology and Evolution 9:793-803.

Correll MD, EH Strasser, AW Green, and AO Panjabi. 2019. Quantifying specialist avifaunal decline in grassland birds of the Northern Great Plains. Ecosphere 10(1):e02523.10.1002/ecs2.2523

2018:

Titulaer M, A Melgoza-Castillo, A Macías-Duarte, AO Panjabi. 2018. Seed size, bill morphology, and handling time influence preferences for native vs. nonnative grass seeds in three declining sparrows. The Wilson Journal of Ornithology 130:445-456.

Macías-Duarte A, AO Panjabi, DB Pool, I Ruvalcaba-Ortega, GJ Levandoski. 2018. Fall vegetative cover and summer precipitation predict abundance of wintering grassland birds across the Chihuahuan desert. Journal of Arid Environments 156:41-49.

Connell L, and C Duchardt. 2018. Sharing Fences: local knowledge guides research across public and private lands. Western Confluence 9:33-35.

Green AW, MD Correll, TL George, I Davidson, S Gallagher, C West, A Lopata, D Casey, K Ellison, DC Pavlacky Jr., L Quattrini, AE Shaw, EH Strasser, T VerCauteren, and AO Panjabi. 2018. Using Structured Decision Making to prioritize species assemblages for conservation. Journal for Nature Conservation 45:48-57.

Monroy-Ojeda A, M Grosselet, A Panjabi, D Pool, C White, G Ruiz-Michael. 2018. Density and population estimates of Rose-bellied Bunting (Passerina rositae), Cinnamon-tailed Sparrow (Peucaea sumichrasti), and Orange-breasted Bunting (Passerina lechlancherii) in the Sierra Tolistoque, Oaxaca, Mexico. The Wilson Journal of Ornithology 130:353-582.

Connell LC, JD Scasta, and LM Porensky. 2018. Prairie dogs and wildfires shape vegetation structure in a sagebrush grassland more than does rest from ungulate grazing. Ecosphere 9(8):e02390. 10.1002/ecs2.2390

Latif QS, MM Ellis, VA Saab, and K Mellen McLean. 2018. Simulations inform design of regional occupancy-based monitoring for a sparsely distributed, territorial species. Ecology and Evolution 8:1171–1185.

2017:

Rosenberg KV, PJ Blancher, JC Stanton, AO Panjabi. 2017. Use of North American Breeding Bird Survey data in avian conservation assessments. The Condor 119:594-606.

Ellison K, E McKinnon, S Zack, S Olimb, R Sparks, and E Strasser. 2017. Migration and winter distribution of the Chestnut-collared Longspur. Animal Migration 4:37-50.

Pavlacky DC Jr., PM Lukacs, JA Blakesley, RC Skorkowsky, DS Klute, BA Hahn, VJ Dreitz, TL George, and DJ Hanni. 2017. A statistically rigorous sampling design to integrate avian monitoring and management within Bird Conservation Regions. PLoS ONE 12(10): e0185924.

Van Lanen NJ, AW Green, TR Gorman, LA Quattrini, and DC Pavlacky Jr. 2017. Evaluating efficacy of fence markers in reducing greater sage-grouse collisions with fencing. Biological Conservation 213:70-83. https://doi.org/10.1016/j.biocon.2017.06.030Get

Titulaer M, A Melgoza-Castillo, AO Panjabi, A Sanchez-Flores, JH Martínez-Guerrero, A Macías-Duarte, JA Fernandez. 2017. Molecular analysis of stomach contents reveals important grass seeds in the winter diet of Baird’s and Grasshopper sparrows, two declining grassland bird species. PLoS ONE 12(12): e0189695. https://doi.org/10.1371/journal.pone.0189695

Macías‐Duarte A, AO Panjabi, EH Strasser, GJ Levandoski, I Ruvalcaba‐Ortega,  PF Doherty, and CI Ortega‐Rosas. 2017. Winter survival of North American grassland birds is driven by weather and grassland condition in the Chihuahuan Desert. Journal of Field Ornithology 88:374-386.

Carver AR, JD Ross, DJ Augustine, SK Skagen, AM Dwyer, DF Tomback, MB Wunder, N Pettorelli, and A Chauvenet. 2017. Weather radar data correlate to hail‐induced mortality in grassland birds. Remote Sensing in Ecology and Conservation 3:90-101. doi:10.1002/rse2.41

Addison LM, SE Cameron, AM Dwyer, W Golder, S Maddock, and SH Schweitzer. 2017. Abundance, distribution, and geographic origin of non-breeding American Oystercatchers (Haematopus palliatus) in North Carolina, USA. Waterbirds 40:86-94. https://doi.org/10.1675/063.040.sp110

2016: 

Conrey RY, SK Skagen, AA Yackel Adams, AO Panjabi, and J Reynolds. 2016. Extremes of heat, drought and precipitation depress reproductive performance in shortgrass prairie passerines. Ibis 158: 614-629. doi:10.1111/ibi.12373

Hagen CA, DC Pavlacky Jr., K Adachi, FE Hornsby, TJ Rintz, and LL McDonald. 2016. Multiscale occupancy modeling provides insights into range-wide conservation needs of Lesser Prairie-Chicken (Tympanuchus pallidicinctus). Condor 118:597-612. DOI: 10.1650/CONDOR-16-14.1

2015:

Drum RG, CA Ribic, K Koch, E Lonsdorf, E Grant, M Ahlering, L Barnhill, T Dailey, S Lor, C Mueller, DC Pavlacky Jr., C Rideout, and D Sample. 2015. Strategic Grassland Bird Conservation throughout the Annual Cycle: Linking Policy Alternatives, Landowner Decisions, and Biological Population Outcomes. PLoS ONE 10(11):  e0142525.https://doi.org/10.1371/journal.pone.0142525

Potter KM, C Gunn, and JP Beason. 2015. Prey items of the Black Swift (Cypseloides niger) in Colorado and a review of historical data. The Wilson Journal of Ornithology 127:411-420.

Mutter M, DC Pavlacky Jr., NJ Van Lanen, and R Grenyer. 2015. Evaluating the impact of gas extraction infrastructure on the occupancy of sagebrush-obligate songbirds. Ecological Applications 25:1175-1186.

2014:
Pool DB, AO Panjabi, A Macías-Duarte, and DM Solhjem. 2014. Rapid expansion of croplands in Chihuahua, Mexico threatens declining North American grassland bird species. Biological Conservation 170:274-281. https://doi.org/10.1016/j.biocon.2013.12.019

2013:

Gupta S. 2013. Of sparrows and sodbusters: Western and Mexican conservationists race against time to save grasslands — and the species that depend on them. High Country News 45:16-19.

Macías-Duarte A, and AO Panjabi. 2013. Home range and habitat use of wintering Vesper Sparrows in grasslands of the Chihuahuan Desert in Mexico. The Wilson Journal of Ornithology 125:755-762.

Phillips R, M West, N Saliendra, B Rundquist, and D Pool. 2013. Prediction of senescent rangeland canopy structural attributes with airborne hyperspectral imagery. GIScience & Remote Sensing 50:133-153.

Macías-Duarte A, and AO Panjabi. 2013. Association of habitat characteristics with winter survival of a declining grassland bird in Chihuahuan Desert grasslands of Mexico. The Auk 130:141-149.

Ciuzio E, WL Hohman, B Martin, MD Smith, S Stephens, AM Strong, and T VerCauteren. 2013. Opportunities and challenges to implementing bird conservation on private lands. Wildlife Society Bulletin 37:267-277.

2012:
Beason JP, C Gunn, KM Potter, RA Sparks, and JW Fox. 2012. The Northern Black Swift: migration path and wintering area revealed. The Wilson Journal of Ornithology 124:1-8.

Pavlacky DC Jr., JA Blakesley, GC White, DJ Hanni, and PM Lukacs. 2012. Hierarchical multi-scale occupancy estimation for monitoring wildlife populations. Journal of Wildlife Management 76:154-162.

Bartuszevige AM, DC Pavlacky Jr., L Burris, and K Herbener. 2012. Inundation of playa wetlands in the western Great Plains relative to landcover context. Wetlands 32:1103-1113.

Pavlacky DC Jr., HP Possingham, AJ Lowe, PJ Prentis, DJ Green, and AW Goldizen. 2012. Anthropogenic landscape change promotes asymmetric dispersal and limits regional patch occupancy in a spatially structured bird population. Journal of Animal Ecology 81:940-952.

Beason J. 2012. Yellow-billed Cuckoos in Western Colorado. Colorado Birds 46:181-187.

Gunn C, KM Potter, and JP Beason. 2012. Nest microclimate at northern Black Swift colonies in Colorado, New Mexico, and California: temperature and relative humidity. Wilson Journal of Ornithology 124:797-802.

2011:
Cariveau AB, DC Pavlacky Jr., AA Bishop, and TG LaGrange. 2011. Effects of surrounding land use on playa inundation following intense rainfall. Wetlands 31:65-73.

2010:
Lock R. 2010. Best management practices for mountain plover. Colorado Renewables and Conservation Collaborative.  http://pljv.org/windandwildlife/co/downloads.php

Post van der Burg M, B Bly, T VerCauteren, and AJ Tyre. 2010. Making better sense of monitoring data from a low density species using a spatially explicit modeling approach. Journal of Applied Ecology 48:47-55.

2009:
Marcias-Duarte A, AB Montoya, CE Mendez-Gonzalez, JR Rodriguez-Salazar, WG Hunt, and PG Krannitz. 2009. Factors influencing habitat use by migratory grassland birds in the state of Chihuahua, Mexico. The Auk 126: 896-905.

2008:
Levad RG, KM Potter, CW Shultz, C Gunn, and JG Doerr. 2008. Distribution, abundance, and nest-site characteristics of Black Swifts in the southern Rocky Mountains of Colorado and New Mexico. Wilson Journal of Ornithology 120: 331-338.

Bly BL, L Snyder, and T VerCauteren. 2008. Migration chronology, nesting ecology, and breeding distribution of Mountain Plover (Charadrius montanus) in Nebraska. Nebraska Bird Review 76:120-128.

2007:
Hirshman SE, C Gunn, and RG Levad. 2007. Breeding phenology and success of Black Swifts in Box Canyon, Ouray, Colorado. Wilson Journal of Ornithology 119:678-685.

2006:
Hicks-Anderson T, and TL VerCauteren. 2006. Mountain Plover in the San Luis Valley. Colorado Birds 40:69-80.

2004:
Faulkner D. 2004. Glossy Ibis records for Colorado and neighboring states. Western Birds 35:147-155.

Faulkner D, and R Levad. 2004. Purple Martins found nesting in Wyoming. Purple Martin Update.

Leukering T. 2004. Writing bird descriptions: ruling out other species. Colorado Birds 38:120-127.

Leukering T, and L Semo. 2004. The 38th Report of the Colorado Bird Records Committee. Colorado Birds 38:168-183.

Leukering T, and L Semo. 2004. Report of the Colorado Bird Records Committee: 2001 Reports, Part II. Colorado Birds 38:14-21.

Lucero J, and A Cariveau. 2004. Yellow-billed Cuckoo in the San Luis Valley. Colorado Birds 38:67-69.

Rich T, C Beardmore, H Berlanga, P Blancher, M Bradstreet, G Butcher, D Demarest, E Dunn, W Hunter, E Inigo-Elias, J Kennedy, A Martell, A Panjabi, D Pashley, K Rosenberg, C Rustay, J Wendt, and T Will. 2004. Partners in Flight North American Landbird Conservation Plan. Cornell Lab of Ornithology. Ithaca, NY.

Semo L, and T Leukering. 2004. Corrigenda and additions to “Amendments to the State Review List”. Colorado Birds 38:23-28.

2002:
Corkum C, and T Toombs. 2002. Prairie Partners. NEBRASKAland 80.

Levad R, and T Leukering. 2002. Inventories of Colorado’s Great Blue Herons: 1999-2001. Colorado Birds 36: 62-71.

Rosenstock S, D Anderson, K Giesen, T Leukering, and M Carter. 2002. Landbird counting techniques: current practices and an alternative. Auk 119: 46-53.

Wood C, and L Semo. 2002. News from the field: the summer 2001 report (June-July). Colorado Birds 36:36-49.

2001:
Duberstein J. 2001. The effects of elk on nest site selection in cavity-nesting birds in Rocky Mountain National Park. Colorado Birds 35:4-12.

Gillihan S, and B Byers. 2001. Evening Grosbeak in The Birds of North America. A. Poole and F. Gill, eds. The Birds of North America, Inc. Philadelphia, PA.

Gillihan S, and M Carter. 2001. Bird Conservation Regions: the shortgrass prairie. Birding 33:546-551.

Giroir G. 2001. It’s an owl-eat-owl world. Colorado Birds 35:40.

Leukering T, R Levad, D Faulkner, and K Potter. 2001. First annual Colorado early-winter waterbird survey. Colorado Birds 35:160-176.

Leukering T, and C Wood. 2001. News from the field: summer 2000 report (June-July). Colorado Birds 35:46-61.

Levad R, and T Leukering. 2001. Found: the West Slope’s first great migrant trap. Colorado Birds 35:17-19.

VerCauteren T, and S Gillihan. 2001. Studying shortgrass birds in north-central Colorado. Birding 33:550.

VerCauteren T, S Gillihan, and S Hutchings. 2001. Distribution of Burrowing Owls (Athene cunicularia) on public and private lands in Colorado. Journal of Raptor Research 35:357-361.

2000:
Carter M, and S Gillihan. 2000. Influence of stand shape, size, and structural stage on forest bird communities in Colorado. Forest Fragmentation in the Southern Rocky Mountains. University Press of Colorado, Boulder. Pp. 271-284.

Carter M, W Hunter, D Pashley, and K Rosenberg. 2000. Setting conservation priorities for landbirds in the United States: the Partners in Flight approach. Auk 117:541-548.

Faulkner D. 2000. Birds of Lone Dome State Wildlife Area and Dolores River corridor. Colorado Birds 34: 130-143.

Gillihan S. 2000. Barbed wire fence fatal to Burrowing Owl. Colorado Birds 34:220-221.

Gillihan S. 2000. Bird conservation on golf courses: a design and management manual. Ann Arbor Press, Inc. Ann Arbor, MI.

Hutchings S. 2000. Fledgling Loggerhead Shrike impaled on cholla. Colorado Birds 34:159.

Leukering T. 2000. Ageing Green-tailed Towhees (Pipilo chlorurus) by eye color. North American Bird Bander 25:13-15.

Leukering T. 2000. Greater Scaup invade Barr Lake. Colorado Birds 34:214-216.

Leukering T. 2000. News from the field: spring 2000 report (March-May). Colorado Birds 34:228-246.

Leukering T. 2000. News from the field: the summer 1999 report (June-July). Colorado Birds 34:67-76.

Leukering T, and L Dombroski. 2000. Birds at Apishapa State Wildlife Area in north-central Las Animas County. Colorado Birds 34:10-23.

Levad R. 2000. First breeding record of Franklin’s Gull for Colorado. Colorado Birds 34:88-90.

Sealy S, A Banks, and J Chase. 2000. Two species of Warbling Vireo differ in their responses to cowbird eggs. Western Birds 31:190-194.

1999:

Giroir G. 1999. Distribution and numbers of breeding Willets (Catoptrophorus semipalmatus) in Colorado. Colorado Birds 33:8-14.

Giroir G, and T Leukering. 1999. Breeding distribution and numbers of Eared, Western, and Clark’s Grebes in Colorado. Colorado Birds 33:83-90.

Leukering T. 1999. News from the field: the spring 1999 report (March-May). Colorado Birds 33:253-267.

Leukering T. 1999. Sapsuckers in Lamar, Prowers County, Colorado. Colorado Birds 33:184-185.

1997:

Leukering T, and J Bradley. 1997. Some observations of birds on the Central Mexican Plateau. Western Birds 28:177-180.

Mabee T. 1997. Using eggshell evidence to determine nest fate of shorebirds. Wilson Bulletin 109:307-313.

Click links below to download.
For more information about these publications, please contact us.

Books
Guide to Backyard birds of the Front Range (English version)
Guia de Aves de Jardin del Front Range (Spanish version)

Management Manuals 
Sharing Your Land with Northern Prairie Birds – A Land Manager’s Guide
Best Management Practices for Grassland Birds
Integrating Bird Conservation into Range Management
Sharing Your Land with Prairie Wildlife
Sharing Your Land with Pinyon-Juniper Birds
Compartiendo Sus Agostaderos con las Aves de Pastizal (Sharing Your Land with Prairie Birds)

Pocket Guides & Birding Brochures
Pocket Guide to Prairie Birds
Pocket Guide to Sagebrush Birds
Pocket Guide to Northern Prairie Birds
Pocket Guide to Birds of Nebraska
Guia de Bolsillo para Aves de Pastizal del Desierto Chihuahuense (Pocket Guide to Chihuahuan Desert Grassland Birds)
Best Birding in Fort Collins (brochure)

Designs
Stock Tank Ladder Design