I think even the birds dislike these extreme temperatures. They are active early in the morning and then make lots of noise as it cools down in the late afternoon. In between they find somewhere to sit it out! One of their favorite places is this tree in my back yard. Right now it is in flower but I haven't seen birds at the flowers so I don't think there is much nectar available.
This is a Leopard Tree (Caesalpinea ferrea) which I planted 10 years ago. The trunk and branches reach high and then there is quite a dense canopy of small leaves. The birds sit right up high just underneath the leaves. It must be lovely up there - sheltered from the sun and catching any breeze that comes by. I can hear the birds up there but only see them as shadows against the light when they move. The trunk of the tree always has this pattern of dark and light.