Digital Commons Network^™

Feeding Methods And Efficiencies Of Selected Frugivorous Birds, Mercedes S. Foster Aug 1987

Seasonal Time-Energy Budgets Of Free-Living Chukars In The Negev Desert, Nurit Carmi-Winkler, A. Allan Degen, Berry Pinshow Aug 1987

Effect Of Group Size And Location Within The Group On The Foraging Behavior Of White Ibises, Daniel R. Petit Aug 1987

Breeding Bird Populations During Twenty-Five Years Of Postfire Succession In The Sierra Nevada, Martin G. Raphael, Michael L. Morrison, Michael P. Yoder-Williams Aug 1987

The Ecology And Energetics Of Chick Provisioning By Black Guillemots, D. K. Cairns Aug 1987

Landbird Productivity In Central Coastal California: The Relationship To Annual Rainfall, And A Reproductive Failure In 1986, David F. Desante, Geoffrey R. Geupel Aug 1987

Observations On Two Rare Birds, Upucerthia Albigula And Conirostrum Tamarugenese, From The Andes Of Southwestern Peru, Thomas S. Schulenberg Aug 1987

An Improved Procedure For Counting Pores In Avian Eggshells, Gilbert W. Blankespoor Aug 1987

Nesting Of The Ross Goose And Blue-Phase Snow Goose In The Sagavanirktok River Delta, Alaska, Stephen R. Johnson, Declan M. Troy Aug 1987

Burrow Nesting By Common Barn-Owls In North Central Colorado, Brian A. Millsap, Patricia A. Millsap Aug 1987

Unusual Records From Coahuila, Mexico, Aldegundo Garza Leon Aug 1987

Conspecific Egg Discrimination In American Coots, Todd W. Arnold Aug 1987

Grasshopper Consumption And Summer Flocks Of Nonbreeding Swainson's Hawks, C. G. Johnson, L. A. Nickerson, M. J. Bechard Aug 1987

Front Matter (Pdf), The Condor Aug 1987

A Description Of Mixed-Species Insectivorous Bird Flocks In Western Mexico, Richard L. Hutto May 1987

Revised Breeding Distribution Of The Boreal Owl In The Northern Rocky Mountains, Gregory D. Hayward, Patricia H. Hayward, Edward O. Garton, Ronald Escano May 1987

Pair Formation In Cowbirds; Evidence Found For Screaming But Not Shiny Cowbirds, Paul Mason May 1987

Genetic Variation, Population Structure, And Evolution Of California Quail, Robert M. Zink, Dale F. Lott, Daniel W. Anderson May 1987

Evidence Of Hybridizatin Between Red-Bellied And Golden-Fronted Woodpeckers, Julia I. Smith May 1987

Cone Pigment Of The Great Horned Owl, Gerald H. Jacobs, Michael Crognale, John Fenwick May 1987

Books Received, The Condor May 1987

A Comparative Study Of Eggshell Thickness In Cowbirds And Other Passerines, Carol D. Spaw, Sievert Rohwer May 1987

Day-To-Day Variation In Nest Attentiveness Of White-Rumped Sandpipers, Ralph V. Cartar, Robert D. Montgomerie May 1987

Egg Data Slips-Are They Useful For Information On Egg-Laying Dates And Clutch Size?, Douglas B. Mcnair May 1987

Cannibalism In American Coots Induced By Severe Spring Weather And Avian Cholera, David G. Paullin May 1987

Winter Diets Of Common Murres And Marbled Murrelets In Kachemak Bay, Alaska, Gerald A. Sanger May 1987

Microgeographic Song Variation In The Nuttall's White-Crowned Sparrow, Michael A. Cunningham, Myron C. Baker, Thomas J. Boardman May 1987

Amino Acid Composition Of The Calamus, Rachis, And Barbs Of White-Crowned Sparrow Feathers, James R. King, Mary E. Murphy May 1987

Present Status Of The Flightless Cormorant, Galapagos Penguin And Greater Flamingo Populations In The Galapagos Islands, Ecuador, After The 1982-83 El Nino, Carlos A. Valle, Malcolm C. Coulter May 1987

Breeding Vocalizations Ofthe Surfbird, Edward H. Miller, William W. Gunn, Stepthen F. Maclean Jr. May 1987