Fun to guess maybe, but since Papilio individuals fall within a size range for any species, it is pretty much impossible to say which species you saw from the information given. Could have been an individual anywhere between the low or high end of the size range of any species. So it's possible for adults in any of your species to be the exact same size. If the top end of size ranges are considered, size wise Papilio cresphontes is the largest Palilionidae in your area. But as Christie pointed out this is not what would be termed a black species. Your largest "black" species is Papilio glaucus, followed in turn by Battus philinor, Paipilio polyxenes and Papilio triolus. Pictures or if you could note characteristics a give a better description would probably solve the puzzle. Larry

We have something similar going on. Like you in previous years our birds have fledged and maybe two weeks later they appear as a 'family' and are usually quite cautious -- taking their time to creep closer and closer to the yard. This year our first brood was actually of 4... for some reason one female just didn't want to leave. We didn't see her brothers/sisters at all and were very worried that something happened to them. When Mom had her second brood this female would hang out (literally) on the box, peeking in the entrance, to the point where Mom and Dad got a little ticked with her! Haven't seen her in a while now.... Now we have an only child from the second brood. There were 4 eggs but only one hatched. He fledged just 4 days ago and appeared in the yard yesterday (3rd day) and again this morning. He's actually quite brave coming straight into the garden instead of hanging back in the trees or on a popular perch (neighbor's satellite dish). Mom also started on her 3rd nest yesterday wasting no time! Will be interesting to see how long he stays around.

I just looked up online about cree lights flickering. I have lived in my current house (11,000 sq feet over3 floors) since 2014. The house is a very faithful colonial reproduction from 1980. My wife and I did a thorough redo of the electrics, mechanicals, Windows, new cedar roof and cedar siding (where needed), paint, bathrooms... We had the entire house rewired and had had about 150 recessed lights in the house (bedroom, kitchen, all bedrooms, all closets, sun room, pantry, halls, laundry room all basement rooms) Redone in Cree 2700k BR30 65 watt bulbs (from reputable electrician). I did this because our past house (3200 sq foot over 4 floor) had many rooms with similar recessed lights I converted to Cree led (the exact same) in 2012. The lights in the old house DID NOT flicker when lights were at full brightness, but the old dimmers were a problem. So I went to Lutron dimmers for CFL and LED. There were no more issues. Well, due to this experience, all lights in new house started up on these led comparable dimmers. I have to be honest - I am SUPER DISAPPOINTED with CREE. I have had at least 20-30 Cree flickering lights in my house. At first I thought it was the rooms, because certain rooms flickered all the time - but, those rooms had a ton of lights. I have replaced them with the LOWES equivalent and have not had an issue. My office (family owned) converted over as well and my parents did. And we all did Cree. We ALL had flicker issues. Some are so bad, they go off for a while! When we switched over to the Lowes brand (only on flickering lights), no more problem. The strange thing is that the Cree completely integrated low profile units (not screw in, but lower profile lights we needed in our pantry that look the same once installed, but are half the installed depth) have all been great. I am almost certain it's a quality control issue. People who have old incandescent "high watt" dimmers - realize you are replacing old bulbs with new ones that demand 1/6 or less the power. The old dimmers don't control the low load properly and you will get flicker if you dim lights. But if you have led ready dimmers or a solid switch, and lights flicker... It's the bulb. I've tried everything and it was the bulb. The Cree's are supposedly the best - but I have had a problem with at least 30. Replacing them fixed issue and other cree's in same circuit and switch have been fine for a couple years. If you have similar issues and a good dimmer - it is not you or your house. It is the light bulb. Return it. I think the Cree's made in the past had better quality control. I asked homeowners of my past house if they ever had to replace one (they are all from 2011/12 - all Cree) and they say they are great.

If your lights are dimming and then returning to normal brightness, and you never see them brighten then get normal again, you probably don't have a loose neutral and the associated risk to appliances. But you may have a problem - or not. Momentary drops in voltage may be caused by very large transient loads in your house or a close neighbor's. Whether you should be concerned depends on how wide the swings are and how frequent. A good electrician should be able to help you determine how serious your situation is. As for your computer UPS, many of them self-test from time to time. I think mine does it weekly, but I'm not sure (I'd have to look at the manual). The behavior is as you describe - the inverter kicks on and it hums and maybe beeps for a few seconds. Probably nothing to worry about.