• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

ID bird help (Lake Elizabeth, Fremont, CA, USA) 1/18/24 (1 Viewer)


Here's some birds I found in California. I was told these were ruddy ducks and great tail grackles. For both, is there a way to tell if it's female or immature male? Thanks! ruddy_duck_female_black_cheek_stripe1.JPGruddy_duck_female_black_cheek_stripe.JPGgreat-tail_grackle_or_brewers_blackbird_female.JPG
Sorry, I am not sure what happened. I thought I had deleted my draft when I looked again at the title, but I must have posted it instead.
At this point in the winter, I think a young male Ruddy Duck would be starting to show some signs of its gender, so I think your bird is likely a female. Juvenile Great-tailed Grackles tend to look messier on the breast, so I think that is a female too.

Users who are viewing this thread