Circulating corticosterone levels vary during exposure to anthropogenic stimuli and show weak correlation with behavior across an urban gradient in house finches (Haemorhous mexicanus)

2018 ◽  
Vol 266 ◽  
pp. 52-59 ◽  
Author(s):  
Melinda Weaver ◽  
Sisi Gao ◽  
Kevin J. McGraw
Keyword(s):  
Urban Gradient ◽  
Weak Correlation ◽  
House Finches ◽  
Haemorhous Mexicanus

Female song can be as long and complex as male song in wild House Finches (Haemorhous mexicanus)

2021 ◽  
Vol 132 (4) ◽  
Author(s):  
Ar Kornreich ◽  
Mason Youngblood ◽  
Paul C. Mundinger ◽  
David C. Lahti
Keyword(s):  
House Finches ◽  
Male Song ◽  
Female Song ◽  
Haemorhous Mexicanus

Female song can be as long and complex as male song in wild House Finches (Haemorhous mexicanus)

10.1676/19-15 ◽  
2021 ◽  
Vol 132 (4) ◽  
Author(s):  
Ar Kornreich ◽  
Mason Youngblood ◽  
Paul C. Mundinger ◽  
David C. Lahti
Keyword(s):  
House Finches ◽  
Male Song ◽  
Female Song ◽  
Haemorhous Mexicanus

scholarly journals Predation of nestling house finches (Haemorhous mexicanus) by a dusky rattlesnake, Crotalus aquilus, in Hidalgo, Mexico

2015 ◽  
Vol 86 (2) ◽  
pp. 550-552 ◽  
Author(s):  
Fanny Rebón-Gallardo ◽  
Oscar Flores-Villela ◽  
David R. Ortíz-Ramírez
Keyword(s):  
House Finches ◽  
Haemorhous Mexicanus

Effects of bird feeder density on the foraging behaviors of a backyard songbird (the House Finch, Haemorhous mexicanus) subject to seasonal disease outbreaks

2020 ◽  
Vol 98 (9) ◽  
pp. 611-621
Author(s):  
M.A. Aberle ◽  
K.E. Langwig ◽  
J.S. Adelman ◽  
D.M. Hawley
Keyword(s):  
Body Mass ◽  
Disease Risk ◽  
High Density ◽  
Disease Spread ◽  
Residual Body ◽  
House Finch ◽  
House Finches ◽  
Local Abundance ◽  
Bird Feeder ◽  
Haemorhous Mexicanus

Provisioning of wildlife, such as backyard bird feeding, can alter animal behavior and ecology in diverse ways. For species that are highly dependent on supplemental resources, it is critical to understand how variation in the degree of provisioning, as occurs naturally across backyards, alters wildlife behavior and ecology in ways potentially relevant to disease spread. We experimentally manipulated feeder density at suburban sites and tracked local abundance, foraging behaviors, body mass, and movement in House Finches (Haemorhous mexicanus (P.L. Statius Müller, 1776)), the primary host of a pathogen commonly spread at feeders. Sites with high feeder density harbored higher local House Finch abundance, and birds at these sites had longer feeding bouts and total time on feeders relative to sites with low feeder density. House Finches at high-density feeder sites had lower residual body mass despite greater apparent feeder access. Finally, birds first recorded at low-density feeder sites were more likely to move to neighboring high-density feeder sites than vice versa. Because local abundance and time spent on feeders have both been linked with disease risk in this species, the effects of heterogeneity in bird feeder density on these traits may have important consequences for disease dynamics in this system and more broadly.

Repeatability of combat rate across different group compositions in male house finches

Behaviour ◽  
2018 ◽  
Vol 155 (10-12) ◽  
pp. 883-904
Author(s):  
Masaru Hasegawa ◽  
Mathieu Giraudeau ◽  
Russell A. Ligon ◽  
Nobuyuki Kutsukake ◽  
Mamoru Watanabe ◽  
...  
Keyword(s):  
Physiological Stress ◽  
Male Identity ◽  
House Finches ◽  
Animal Contests ◽  
Focal Individual ◽  
Urban Males ◽  
Rural Sites ◽  
Group Compositions ◽  
Male House ◽  
Haemorhous Mexicanus

Abstract Studies of animal contests have focused on the probability of winning an encounter, because it directly affects the benefits of competition. However, the costs (e.g., physiological stress) and benefits of competition should also depend on the number of aggressive encounters per unit time (combat rate, hereafter) in which the focal individual is involved. Using colourful and drab male house finches (Haemorhous mexicanus) from urban and rural sites, we showed that combat rate was repeatable across the same and different group sizes for birds who won competitions. In addition, colourful urban males exhibited the lowest propensity for frequent aggression (and hence low combat rate). However, male bill size (another trait we previously found to correlate with male competitiveness in this species) was not related to aggressive propensity. Combat rate can be predicted by male identity and some, but not all, predictors of male competitiveness.

Carotenoid-based plumage coloration reflects feather corticosterone levels in male house finches (Haemorhous mexicanus)

2013 ◽  
Vol 67 (11) ◽  
pp. 1817-1824 ◽  
Author(s):  
Á. Z. Lendvai ◽  
M. Giraudeau ◽  
J. Németh ◽  
V. Bakó ◽  
K. J. McGraw
Keyword(s):  
Plumage Coloration ◽  
House Finches ◽  
Male House ◽  
Feather Corticosterone ◽  
Haemorhous Mexicanus

scholarly journals Detection ofMycoplasma gallisepticumin House Finches (Haemorhous mexicanus) from Arizona

2018 ◽  
Vol 62 (1) ◽  
pp. 14-17 ◽  
Author(s):  
Molly Staley ◽  
Camille Bonneaud ◽  
Kevin J. McGraw ◽  
Carol M. Vleck ◽  
Geoffrey E. Hill
Keyword(s):  
House Finches ◽  
Haemorhous Mexicanus
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