The presumptive sparrow baby is no longer in the nest, so I guess I was right on his status, sadly enough. (Special thanks to Mama Finch for disposing of the corpse someplace out of sight and not just kicking it to the floor of the porch for me to find.) There is a newly hatched baby finch alongside the one that hatched yesterday, so total nest count at this point is two baby finches and three eggs yet to hatch.
Also, the problem with the Sienna's AC seems to be actually related to the work they did on it the last time. Then, they'd said the problem was one of two things (or possibly both) and at their suggestion, we had them do the lesser of the two fixes and hoped that would take care of it. Since it was the larger, more complicated and expensive issue, they are going to credit the work they did last time towards this fix, which knocks a good bit off of the still-costly bill, but they think this will take care of it once and for all. (As it should since we've now replaced just about the entire AC system...) The bad news is that they don't have the part they need on hand so we'll have to do the complicated Drop Off the Van routine again either on Friday or Saturday. The mechanic did say that he thinks we should have a few more good, problem-free years at least left on the van, given the state of everything else in it and the shape it's in, now that the AC issue will be resolved. Hope he's right!!