|After-hatch year (AHY) male Wilson's Warbler (WIWA)|
Many flocks of Red-winged Blackbirds (RWBL) have been flying over the study site during the first hour after sunrise. A small sample are caught in the nets. Here is a comparison of an adult (AHY) and hatching year (HY) male RWBL. HY male has body feathers similar to female this time of year with orange lesser coverts whereas the AHY male has black body feathers edged with brown which will wear off giving the solid black plumage. The HY male will molt his body feathers again before spring to a black body but still have its orange lesser coverts.
|Back of AHY and HY RWBL|
|Front view of AHY and HY male RWBL|
|AHY left and HY on right|
|Yellow Warbler -note yellow tail spots-only found in YEWAs|
|YEWA adult (AHY) female with slate colored bill and tiny red streaks on breast|
|HY Male Rose-breasted Grosbeak (RBGR).|
You can see his rosy "wing pits" showing, identifying it as a male.
|HY male Ruby-throated Hummingbird (RTHU)|