Juvenile or Female Yellow-rumped Warbler? - Eastern Ontario, Canada (1 Viewer)

[Gordon W]

Shot this morning in eastern Ontario, Canada, I'm pretty sure this is a Yellow-rumped Warbler, but is it a juvenile or female?

 

[stuartelsom]

Definitely Yellow-rumped and a very nice pic. Young birds tend to be quite crisp due to the newer feathers, so underpart streaking and greater coverts should be darker (blacker) and better defined. The plumage on this bird is quite dull and lacks any crispness or contrast. I would have said adult female, although birds of this appearance can be notoriously difficult to age accurately. Happy to be corrected by BF members on the other side of the pond though...

 

[Gordon W]

Thank you, Stuart. No one has said anything differently, so I'll go with it being a female.

 

[The Bird Nuts]

Why can't you just leave it as sex/age unknown? As Stuart noted they are "notoriously difficult to age accurately."

 

[Gordon W]

Why can't you just leave it as sex/age unknown? As Stuart noted they are "notoriously difficult to age accurately."

Okay.

 

[KC Foggin]

Female for me as well and Stuart explained it brilliantly!