If you didn’t read yesterday’s post you’ll want to go back and start there. Otherwise, this won’t make much sense.
This next chapter is when things got really weird. That evening when we checked, the nest with the two big baby birds had only one big baby bird. We looked everywhere trying to see if it had fallen out and needed help. We never found it. BUT . . . . when we looked up to the nest it had been in, the other big baby bird was almost completely out of the nest, sort of perching half in and half out. AND . . . . as one of the “warbler” birds flew in, three tiny heads popped up beside big baby bird, mouths wide open for a meal.
Let me summarize at this point because this only gets weirder from here. We have a nest of king birds on a branch hanging over the pond. Mom and dad king bird are feeding. The nest looks a bit damaged but all seems well despite that. We have a second nest up higher. A black and maroon bird and a couple of “warbler” birds are feeding the babies in this nest. (That should NOT be happening.) In this nest were two large baby birds (one is now gone) and three tiny baby birds.
My daughters and I discussed the parasite bird syndrome. There are birds who lay their eggs in another bird’s nest leaving the other bird to raise their own young AND the “parasite” babies. We thought the bigger baby birds could be parasite babies but that wouldn’t explain why two different kinds of birds were feeding this nest of young.
The next day Younger Daughter and I were checking the nests. And that second big baby was out of the nest. It was sitting in a clump of pond grass so close to the water that it was bound to fall in at any moment. Younger had to wade out into the pond but she was able to shoo it towards the bank. I eventually was able to pick it up and set it on a brand in the tree. We hoped that its parent would continue to feed it until it was ready to fly away.
That evening we checked and the baby big bird was higher in the tree, perched on a branch. Wonderful! Also that evening we discovered that there was yet a third nest even higher in the tree. We watched and it seemed maybe one of the yellow-ish warbler birds might be feeding at that nest. Wow, were we ever confused!
Nearly every one of us had tried looking up what kind of bird was the black and maroon one. No luck. We knew it wasn’t a parasite parent because it had hung around to keep feeding the babies. But it SEEMED like the black and maroon bird had laid its eggs in the warbler nest and now the black and maroon bird and the warbler birds were feeding their babies IN THE SAME NEST. And that just doesn’t happen!
So that night in bed, I got on my phone and decided I would try again to identify the black and maroon bird. Lo and behold I found it! It was an Orchard Oriole. The male matched perfectly and the female made my mouth drop open. Guess what the female looks like. A yellow-ish warbler. So now it started making sense. The male and female Orchard Oriole were feeding their babies in nest #2. The other yellow-ish “warbler” was feeding at the very high nest #3 (along with her partner – more in a minute). The two BIG baby birds in the Orchard Oriole nest actually WERE parasite birds. A brown headed cowbird had laid her eggs in the Orchard Oriole nest. As I read more about Orchard Orioles, my mouth stayed open. Orchard Orioles only come to southern Illinois to breed. So it was rare that we’d been lucky enough to witness this. But get this! They build their nests near king bird nests because king birds are more aggressive and they keep the cowbirds away! So the Orchard Orioles had done everything right. They made their way from Mexico or Central America to breed here in the Midwest. They built their nest in the same tree with a pair of king birds who were supposed to keep the parasite cowbirds away. It didn’t work out exactly as planned and a cowbird DID lay her eggs in the Orchard Oriole nest and those two poor parents managed to feed the cowbirds and their own three. And we watched every bit of this play out right here at our pond. WHAT a mystery turned education!
Oh, and I said we discovered that third nest way up in the tree. When I kept seeing TWO yellow-ish birds flying in and out of the tree – well, one was the female orchard oriole; the other was a female Baltimore oriole. We got to see the male show up on one of the last evenings at the pond. A pair of king birds, a pair of Orchard Orioles, and a pair of Baltimore Orioles all in the same tree. How lovely!