Ectoparasite density is associated with mouth colour and size in nestling House SparrowsPasser domesticus

Rictal Flanges of Nestling Birds are Most Colorful Near the Gape

(2013) Matthew B. Dugas et al.   Wilson Journal of Ornithology

Cross-fostering reveals that among-brood differences in ornamental mouth coloration mostly reflect rearing conditions in nestling house sparrows

(2012) MATTHEW B. DUGAS   BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY

New labels for old whines

(2011) R. A. Johnstone et al.   BEHAVIORAL ECOLOGY

Honest begging: expanding from Signal of Need

(2011) D. W. Mock et al.   BEHAVIORAL ECOLOGY

Proximate Correlates of Carotenoid-Based Mouth Coloration in Nestling House Sparrows

(2011) Matthew B. Dugas et al.   CONDOR

Sense and sensitivity: responsiveness to offspring signals varies with the parents' potential to breed again

(2011) R. Thorogood et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

House sparrow, Passer domesticus, parents preferentially feed nestlings with mouth colours that appear carotenoid-rich

(2009) Matthew B. Dugas   ANIMAL BEHAVIOUR

Carotenoid-rich mouth colors influence the conspicuousness of nestling birds

(2009) Matthew B. Dugas et al.   BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY

Nestlings’ carotenoid feather ornament affects parental allocation strategy and reduces maternal survival

(2009) M. GRIGGIO et al.   JOURNAL OF EVOLUTIONARY BIOLOGY

Condition dependence of nestling mouth colour and the effect of supplementing carotenoids on parental behaviour in the hihi (Notiomystis cincta)

(2008) John G. Ewen et al.   OECOLOGIA

Parental provisioning and offspring fitness: size matters

(2007) P.L. Schwagmeyer et al.   ANIMAL BEHAVIOUR

Condition-dependent effects of corticosterone on a carotenoid-based begging signal in house sparrows

(2007) Claire Loiseau et al.   HORMONES AND BEHAVIOR

Adaptive developmental plasticity in growing nestlings: sibling competition induces differential gape growth

(2007) D. Gil et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES