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Articles 60571 - 60600 of 1196252

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Is Diet-Shifting Facilitated By Modulation Of Pancreatic Enzymes? Test Of An Adaptational Hypothesis In Yellow-Rumped Warblers, M. Eugenia Ciminari, Daniel Afik, William H. Karasov, Enrique Caviedes-Vidal Sep 2024

Is Diet-Shifting Facilitated By Modulation Of Pancreatic Enzymes? Test Of An Adaptational Hypothesis In Yellow-Rumped Warblers, M. Eugenia Ciminari, Daniel Afik, William H. Karasov, Enrique Caviedes-Vidal

The Auk

No abstract provided.


Growth And Development Of Homeothermy In Nestling European Shags "Phalacrocorax Aristotelis", Jan Eivind Jenssen, Claus Bech Sep 2024

Growth And Development Of Homeothermy In Nestling European Shags "Phalacrocorax Aristotelis", Jan Eivind Jenssen, Claus Bech

The Auk

No abstract provided.


Prefledging Energy Requirements In Shorebirds: Energetic Implications Of Selffeeding Precocial Development, Hans Schekkerman, G .. Visser Sep 2024

Prefledging Energy Requirements In Shorebirds: Energetic Implications Of Selffeeding Precocial Development, Hans Schekkerman, G .. Visser

The Auk

No abstract provided.


Energetics Of Toucans, A Barbet, And A Hornbill: Implications For Avian Frugivory, Brian K. Mcnab Sep 2024

Energetics Of Toucans, A Barbet, And A Hornbill: Implications For Avian Frugivory, Brian K. Mcnab

The Auk

No abstract provided.


Do We Know What We Think We Know About Winter Ranges Of Migrants To South America? The Case Of The Veery "Catharus Fuscescens", Philip C. Stouffer Sep 2024

Do We Know What We Think We Know About Winter Ranges Of Migrants To South America? The Case Of The Veery "Catharus Fuscescens", Philip C. Stouffer

The Auk

No abstract provided.


It Takes Guts "And More" To Eat Fruit: Lessons From Avian Nutritional Ecology, Douglas J. Levey, Carlos Martinez Del Rio Sep 2024

It Takes Guts "And More" To Eat Fruit: Lessons From Avian Nutritional Ecology, Douglas J. Levey, Carlos Martinez Del Rio

The Auk

No abstract provided.


It Takes Guts "And More" To Eat Fruit: Lessons From Avian Nutritional Ecology, Douglas J. Levey, Carlos Martinez Rio Sep 2024

It Takes Guts "And More" To Eat Fruit: Lessons From Avian Nutritional Ecology, Douglas J. Levey, Carlos Martinez Rio

The Auk

No abstract provided.


Regional Variation In Response Of Field Sparrows To The Threat Of Brown-Headed Cowbird Parasitism, Dirk E. Burhans, Bill M. Strausberger, Michael D. Careys Sep 2024

Regional Variation In Response Of Field Sparrows To The Threat Of Brown-Headed Cowbird Parasitism, Dirk E. Burhans, Bill M. Strausberger, Michael D. Careys

The Auk

No abstract provided.


A Cytochrome-B Perspective On Passerina Bunting Relationships, John Klicka, Adam J. Fry, Robert M. Zink, Christopher W. Thompson Sep 2024

A Cytochrome-B Perspective On Passerina Bunting Relationships, John Klicka, Adam J. Fry, Robert M. Zink, Christopher W. Thompson

The Auk

No abstract provided.


Habitat Selection Studies In Avian Ecology: A Critical Review, Jason Jones Sep 2024

Habitat Selection Studies In Avian Ecology: A Critical Review, Jason Jones

The Auk

No abstract provided.


Foraging Strategies And Niche Dynamics Of Coexisting Shorebirds At Stopover Sites In The Southern Great Plains, Craig A. Davis, Loren M. Smith Sep 2024

Foraging Strategies And Niche Dynamics Of Coexisting Shorebirds At Stopover Sites In The Southern Great Plains, Craig A. Davis, Loren M. Smith

The Auk

No abstract provided.


Bird Diversity Components In Australian Eucalyptus And North-Temperate Quercus Woodlands, Martin L. Cody Sep 2024

Bird Diversity Components In Australian Eucalyptus And North-Temperate Quercus Woodlands, Martin L. Cody

The Auk

No abstract provided.


Geographic Variation, Hybridization, And The Leapfrog Pattern Of Evolution In The Suiriri Flycatcher "Suiriri Suiriri" Complex, Floyd E. Hayes Sep 2024

Geographic Variation, Hybridization, And The Leapfrog Pattern Of Evolution In The Suiriri Flycatcher "Suiriri Suiriri" Complex, Floyd E. Hayes

The Auk

No abstract provided.


Reclaimed Coal Mine Grasslands And Their Significance For Henslow's Sparrows In The American Midwest, Robb A. Bajema, Travis L. Devault, Peter E. Scott, Steven L. Lima Sep 2024

Reclaimed Coal Mine Grasslands And Their Significance For Henslow's Sparrows In The American Midwest, Robb A. Bajema, Travis L. Devault, Peter E. Scott, Steven L. Lima

The Auk

No abstract provided.


Bird Migration Through A Mountain Pass Studied With High Resolution Radar, Ceilometers, And Census, Timothy C. Williams, Janet M. Williams, Peter G. Williams, Paul Stokstad Sep 2024

Bird Migration Through A Mountain Pass Studied With High Resolution Radar, Ceilometers, And Census, Timothy C. Williams, Janet M. Williams, Peter G. Williams, Paul Stokstad

The Auk

No abstract provided.


A New Species Of Tody-Tyrant "Tyrannidae: Poecilotriccus" From Northern Peru, Ned K. Johnson, Robert E. Jones Sep 2024

A New Species Of Tody-Tyrant "Tyrannidae: Poecilotriccus" From Northern Peru, Ned K. Johnson, Robert E. Jones

The Auk

No abstract provided.


Advances In Avian Behavioral Endocrinology, Barney A. Schlinger, Kiran K. Soma, Colin Saldanha Sep 2024

Advances In Avian Behavioral Endocrinology, Barney A. Schlinger, Kiran K. Soma, Colin Saldanha

The Auk

No abstract provided.


Genetic Monogamy In Wilson's Storm-Petrel, Petra Quillfeldt, Tim Schmoll, Hans-Ulrich Peter, Jorg Thomas Epplen, Thomas Lubjuhn Sep 2024

Genetic Monogamy In Wilson's Storm-Petrel, Petra Quillfeldt, Tim Schmoll, Hans-Ulrich Peter, Jorg Thomas Epplen, Thomas Lubjuhn

The Auk

No abstract provided.


Mitochondrial Perspective On The Phylogenetic Relationships Of The Parula Wood-Warblers, Irby J. Lovette, Eldredge Bermingham Sep 2024

Mitochondrial Perspective On The Phylogenetic Relationships Of The Parula Wood-Warblers, Irby J. Lovette, Eldredge Bermingham

The Auk

No abstract provided.


Comparison Of The Reproductive Biology Of Two Neotropical Wrens In An Unpredictable Environment In Northeastern Colombia, Jorge A. Ahumada Sep 2024

Comparison Of The Reproductive Biology Of Two Neotropical Wrens In An Unpredictable Environment In Northeastern Colombia, Jorge A. Ahumada

The Auk

No abstract provided.


Demography Of Brown-Headed Cowbirds At Delta Marsh, Manitoba, Bonnie E. Woolfenden, H. Lisle Gibbs, Spencer G. Sealy Sep 2024

Demography Of Brown-Headed Cowbirds At Delta Marsh, Manitoba, Bonnie E. Woolfenden, H. Lisle Gibbs, Spencer G. Sealy

The Auk

No abstract provided.


Predator Responses To Similarity And Dispersion Of Artificial Nest Sites: Implications For The Structure Of Boreal Forest Songbird Communities, Sheila A. Rangen, Robert G. Clark, Keith A. Hobson Sep 2024

Predator Responses To Similarity And Dispersion Of Artificial Nest Sites: Implications For The Structure Of Boreal Forest Songbird Communities, Sheila A. Rangen, Robert G. Clark, Keith A. Hobson

The Auk

No abstract provided.


Patterns Of Corticosterone Secretion In Migrating Semipalmated Sandpipers At A Major Spring Stopover Site, David S. Mizrahi, Rebecca L. Holberton, Sidney A. Gauthreaux Jr. Sep 2024

Patterns Of Corticosterone Secretion In Migrating Semipalmated Sandpipers At A Major Spring Stopover Site, David S. Mizrahi, Rebecca L. Holberton, Sidney A. Gauthreaux Jr.

The Auk

No abstract provided.


Area Requirements Of Grassland Birds: A Regional Perspective, Douglas H. Johnson, Lawrence D. Igl Sep 2024

Area Requirements Of Grassland Birds: A Regional Perspective, Douglas H. Johnson, Lawrence D. Igl

The Auk

No abstract provided.


Molecular Systematics And Biogeography Of Antillean Thrashers, Tremblers, And Mockingbirds (Aves: Mimidae), Jeffrey S. Hunt, Eldredge Bermingham, Robert E. Ricklefs Sep 2024

Molecular Systematics And Biogeography Of Antillean Thrashers, Tremblers, And Mockingbirds (Aves: Mimidae), Jeffrey S. Hunt, Eldredge Bermingham, Robert E. Ricklefs

The Auk

No abstract provided.


Major Divisions In Oscines Revealed By Insertions In The Nuclear Gene C-Myc: A Novel Gene In Avian Phylogenetics, Per G. Ericson, Ulf S. Johansson, Thomas J. Parsons Sep 2024

Major Divisions In Oscines Revealed By Insertions In The Nuclear Gene C-Myc: A Novel Gene In Avian Phylogenetics, Per G. Ericson, Ulf S. Johansson, Thomas J. Parsons

The Auk

No abstract provided.


Possible Effects Of Pcb Contamination On Female Plumage Color And Reproductive Success In Hudson River Tree Swallows, John P. Mccarty, Anne L. Sncord Sep 2024

Possible Effects Of Pcb Contamination On Female Plumage Color And Reproductive Success In Hudson River Tree Swallows, John P. Mccarty, Anne L. Sncord

The Auk

No abstract provided.


Front Matter, The Auk Sep 2024

Front Matter, The Auk

The Auk

No abstract provided.


The 20-Cm Spiny Penis Of The Argentine Lake Duck (Oxyura Vittata), Kevin G. Mccracken Sep 2024

The 20-Cm Spiny Penis Of The Argentine Lake Duck (Oxyura Vittata), Kevin G. Mccracken

The Auk

No abstract provided.


Anatomical And Nutritional Adaptations Of The Speckled Mousebird (Coitus Striatus), Colleen T. Downs, J. Olaf Wirminghaus, Michael J. Lawes Sep 2024

Anatomical And Nutritional Adaptations Of The Speckled Mousebird (Coitus Striatus), Colleen T. Downs, J. Olaf Wirminghaus, Michael J. Lawes

The Auk

No abstract provided.