Oops, sorry I missed your previous post about having Bantams in with the Guineas.
So since you do have a trio of chickens in with the Guineas then I'm definitely leaning towards that being a chicken egg. Guineas are seasonal layers, and it's definitely not their season right now, tho some do lay a few random eggs here and there even in the off season. All the random, off season odd-ball shaped Guinea eggs I have ever collected from my flocks were much smaller than a normal Guinea egg, but still very obviously pointed... except for a few that were considered what are called "fart eggs"... and these were even smaller and almost completely round, with an extra super thick shell and contained no yolk inside. Also the first timer Guinea Hens in my flocks tend to just lay eggs in random places for a while when they first start laying, their instinct to make or use a nest doesn't seem to kick in until they've laid several if not close to a dozen eggs.
How thick is the shell on that little egg of yours? Not sure if you have ever collected eggs from Guineas before (and or eaten them), but Guinea eggs normally have really thick shells compared to chicken eggs... and usually have some degree of speckling or other identifying markings/color (referred to as a Hen print), rather than just being an overall even pale beige color. Here's an assortment of eggs collected from one of my mixed flocks, showing the variation in speckling and coloring (large chicken egg in the middle).
So IMO, there's quite a few things stacked in favor of your little mystery egg being a chicken egg... but I guess the only way to really know is to be able to catch which ever Hen laid it in the act of laying another beige egg, lol.
So since you do have a trio of chickens in with the Guineas then I'm definitely leaning towards that being a chicken egg. Guineas are seasonal layers, and it's definitely not their season right now, tho some do lay a few random eggs here and there even in the off season. All the random, off season odd-ball shaped Guinea eggs I have ever collected from my flocks were much smaller than a normal Guinea egg, but still very obviously pointed... except for a few that were considered what are called "fart eggs"... and these were even smaller and almost completely round, with an extra super thick shell and contained no yolk inside. Also the first timer Guinea Hens in my flocks tend to just lay eggs in random places for a while when they first start laying, their instinct to make or use a nest doesn't seem to kick in until they've laid several if not close to a dozen eggs.
How thick is the shell on that little egg of yours? Not sure if you have ever collected eggs from Guineas before (and or eaten them), but Guinea eggs normally have really thick shells compared to chicken eggs... and usually have some degree of speckling or other identifying markings/color (referred to as a Hen print), rather than just being an overall even pale beige color. Here's an assortment of eggs collected from one of my mixed flocks, showing the variation in speckling and coloring (large chicken egg in the middle).
So IMO, there's quite a few things stacked in favor of your little mystery egg being a chicken egg... but I guess the only way to really know is to be able to catch which ever Hen laid it in the act of laying another beige egg, lol.
