Is there any good way to tell the difference between a male and female Blue Jay? All the ones I have studied at my feeders seem to have very little, if any, difference that I can tell to distinguish a male from a female.
I also have trouble telling the difference between a mature male and female Osprey. All the field guides I have read tell me that the female will usually have more brown streaks on her chest and will be slightly larger than the male. But I have a pair of Osprey that live in a nest on a cell tower near me that I am having trouble identifying. I can sometimes see the difference in their sizes if they are perched on the cell tower together but if they are alone, I can't tell one from the other. One seems to have a darkish chestband - not really streaks but more like a band - high up on the chest. The other one seems to have a less obvious chestband. Could this be the brown "streaks" the guides refer to on the female?
Still learning and loving it!