is that when we have an extended dry spell, birds will almost disappear until the rain comes back in, probably due to scarcity of water. Extended dry conditions also means a reduction in their natural food supply.
I'm in north central Kentucky and because of my location, I suspect they temporarily move toward larger creeks and the Ohio River. I have noticed that when I keep my two home-made birdbaths clean and filled, I get more birds around my feeders.
Don't know where you are in central Texas but if it's been dry for a while, that could be the problem.
Look the the drought map for Texas here: https://www.drought.gov/drought/states/texas
Other factors I can think of:
* Some experts say bird numbers are falling over much of the world due to climate change, man's expansion into wild lands and wetlands, and due to air and water pollution.
* Migratory routes may have shifted due to climate change.
* You may have had a sudden increase in predators in your area that are scaring them away. For example, if there's a lot of cats in the area, birds tend to shy away.
But to answer your original question, bird numbers are pretty good although I sense an overall decrease over the years and I definitely am not seeing some of the migratory birds I did say, 10 years ago.
Love my birds.........
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