Ficedula parva - sexing spring

Red-breasted Flycatcher / Mindre flugsnappare

SEXING:

Seldom offers any problem - basic rule is that adults are readily sexed, while young birds can not be sexed. However a few birds are more problematic. Always age the bird first.

2cy: The great majority can not be sexed, but a portion of young males (in our sample c. 11 % [40 out of all 373 2cy birds]) show a slight red-orange tinge on the chin, throat or upper chest.

3cy+: Easily sexed as male shows a cold grey head and a bright red-orange chin and throat, while females are pale buff or off-white on chin and throat. Very exceptionally, females are said to show some orange-red on chin (see Svensson [1992]), but should reasonably still be reckognized as females on the lack of cold grey areas in e.g. sides of neck, throat and breast.
2cy May, sex unkown. 2cy birds are generally left unsexed, except for a minor part of the males showing a slight orange tinge on the chin, throat or upper breast. [SV2351]
2cy May, sex unknown, showing some variation. [SS6918]
2cy male May. Reckognized as male on the slight orange tinge on chin and throat. [SV2330]
2cy male May. Close up showing the same individual. [SV2330]
3cy+ male May. Adult males show red-orange chin and throat and cold grey head and breast sides. [SN9000]
3cy+ female May. Readily reckognized as female once aged correctly. [SV2361]
More Ficedula parva:
Ageing autumn

Sexing autumn
Ageing spring

Moult
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