Andersson (1994) Sexual selection. Princeton University Press, Princeton
Google Scholar
Baker RR, Parker GA (1979) The evolution of bird coloration. Philos Trans R Soc Lond B 287:63–130
Google Scholar
Bendich A (1989) Carotenoids and the immune response. J Nutr 119:112–115
Google Scholar
Booth CL (1990) Evolutionary significance of ontogenetic colour change in animals. Biol J Linn Soc 40:25–163
Google Scholar
Brush AH (1978) Avian pigmentation. In: Brush AH (ed) Chemical zoology, vol X. Aves. Academic, New York, pp 141–164
Butcher GS, Rohwer S (1989) The evolution of conspicuous and distinctive coloration for communication in birds. Plenum Press, London
Google Scholar
Chew BP, Park JS (2004) Carotenoid action on the immune response. J Nutr 134:257S–261S
Google Scholar
Christe P, Richner H, Oppliger A (1996) Of great tits and fleas: sleep baby sleep. Anim Behav 52:1087–7092
Article
Google Scholar
Cohen J (1988) Statistical power analysis for the behavioural sciences, 2nd edn. Lawrence Erlbaum, Hillsdale
Google Scholar
Edge R, McGarvey DJ, Truscott TG (1997) The carotenoids as anti-oxidants: a review. J Photochem Photobiol B 41:189–200
Article
CAS
PubMed
Google Scholar
Endler JA (1990) On the measurement and classification of colour in studies of animal colour patterns. Biol J Linn Soc 41:315–352
Google Scholar
Ficken MS (1965) Mouth colour of nestling passerines and its use in taxonomy. Wil Bull 77:71–75
Google Scholar
Fitze PS, Richner H (2002) Differential effects of a parasite on ornamental structures based on melanins and carotenoids. Behav Ecol 13:401–407
Article
Google Scholar
Fitze PS, Kölliker M, Richner H (2003) Effects of common origin and common environment on nestling plumage coloration in the great tit (Parus major). Evolution 57:144–150
Google Scholar
Gosler A (1993) The great tit. Hamlyn, London
Google Scholar
Götmark F, Ahlström M (1997) Parental preference of red mouth of chicks in a songbird. Proc R Soc Lond B 264:959–962
Article
Google Scholar
Götmark F, Olsson J (1997) Artificial colour mutation: do red-painted great tits experience increased or decreased predation?. Anim Behav 53:83–91
Article
Google Scholar
Hill GE (1999) Mate choice, male quality, and carotenoid-based plumage coloration. Proc Int Ornithol Congr 22:1654–1668
Google Scholar
Hill GE (2000) Energetic constraints on expression of carotenoid-based plumage coloration. J Avian Biol 31:559–566
Article
Google Scholar
Hill GE, Montgomerie R (1994) Plumage color signals nutritional condition in the house finch. Proc R Soc Lond B 258:47–52
Google Scholar
Hunt S, Kilner RM, Langmore NE, Bennett ATD (2003) Conspicuous, ultraviolet-rich mouth colours in begging chicks. Proc R Soc Lond B 270:S25–S28
Google Scholar
Jenni L, Winkler R (1994) Moult and aging of European passerines. Academic, London
Google Scholar
Johnsen A, Delhey K, Andersson S, Kempenaers B (2003) Plumage colour in nestling blue tits: sexual dichromatism, condition dependence and genetic effects. Proc R Soc Lond B 270:1263–1270
Article
Google Scholar
Kilner R, Davies NB (1998) Nestling mouth colour: ecological correlates of a begging signal. Anim Behav 56:705–712
Article
Google Scholar
Kölliker M, Richner H, Werner I, Heeb P (1998) Begging signals and biparental care: nestling choice between parental feeding locations. Anim Behav 55:215–222
Article
PubMed
Google Scholar
Lyon BE, Eadie JM, Hamilton LD (1994) Parental choice selects for ornamental plumage in coot chicks. Nature 371:240–243
Article
Google Scholar
McGraw KJ, Hill GE (2000) Carotenoid-based ornamentation and status signalling in the house finch. Behav Ecol 11:520–527
Article
Google Scholar
Olson VA, Owens IPF (1998) Costly sexual signals: are carotenoids rare, risky or required? Trends Evol Ecol 13:510–514
Article
Google Scholar
Partali V, Liaaen-Jensen S, Slagsvold T, Lifjeld JT (1987) Carotenoids in food chain studies: II. The food chain of Parus spp. monitored by carotenoid analysis. Comp Biochem Physiol B 87(4):885–888
Article
Google Scholar
Pryke SR, Lawes MJ, Andersson S (2001) Agonistic carotenoid signalling in male red-collared widowbirds: aggression related to the colour signal of both the territory owner and model intruder. Anim Behav 62:695–704
Article
Google Scholar
Rohwer S (1975) The social significance of avian winter plumage variability. Evolution 29:593–610
Google Scholar
Ryan MJ (1998) Sexual selection, receiver biases, and the evolution of sex differences. Science 281:1999–2003
Article
CAS
PubMed
Google Scholar
Saino N, Ninni P, Calza S, Martinelli R, De Bernardi F, Møller AP (2000) Better red than dead: carotenoid-based mouth coloration reveals infection in barn swallow nestlings. Proc R Soc Lond B 267:57–61
Article
Google Scholar
Sall J, Lehmann A (1996) JMP start statistics. Duxbury Press, New York
Google Scholar
Senar JC (1999) Plumage colouration as a signal of social status. Proc Int Ornithol Congr 22:1669–1686
Google Scholar
Slagsvold T, Lifjeld JT (1985) Variation in plumage colour of the great tit Parus major in relation to habitat, season and food. J Zool 206:321–328
Google Scholar
Tschirren B, Fitze PS, Richner H (2003) Proximate mechanisms of variation in the carotenoid-based plumage coloration of nestling great tits (Parus major L). J Evol Biol 16:91–100
Article
Google Scholar
Wolfenbarger LL (1999) Is red coloration of male Northern Cardinals beneficial during the nonbreeding season?: a test of status signaling. Condor 101:655–663
Google Scholar