Migration

There are several Black -Headed Grosbeaks in the yard now. There is often one or two off and on during the year but now there are at least 6 of them. I have seen three males but I haven't got a good picture of those yet. They are more colorful with the head being completely black and bright rust orange on their breast and body. (Halloween birds) The rest are either young males or females. I like their voice, to me it seems real "sweet" and soft. They have very large and strong beaks. (Grosbeaks!) Click on the picture and it will enlarge so you can see how heavy the beak is.
They are on their way down to winter in Mexico. I was reading that near Mexico City they eat a lot of Monarch Butterflies. They will eat for several days and then stop for a week or so. Experts think that it is because of the poison in the Monarchs. The birds have to stop so they don't build up too much in their systems.
I wonder what else we will be getting during the migration period. Hard to believe it getting on to fall already!