Identify these bird eggs?

[DaveC426913]

Found this clutch of eggs in my front garden today, not 2 yards from the sidewalk.
Have never seen any large bird take an interest in garden.

Count: 3
Colour: solid white, maybe a faint tinge of green, like the heron egg in this pic. No speckles. Matte finish.
Size: 55mm long, 40mm in diameter*
Shape: Pretty chicken egg shaped - a pointy end and a round end
Nest: None. Just nestled into the mulch of my flower bed.
Location: Toronto, 200 yards from L. Ontario shore parkland.
Time: Late July

* so, a little smaller than a chicken egg (62x45). Too small to be duck; way too small to be goose.

 

[DaveC426913]

Just stumbled across specs for Mallard duck:

https://www.allaboutbirds.org/guide/Mallard/lifehistory

Fits bang on. Very common this near the shore.

In fact, a duck got trapped in my gazebo just a month back. I have a small pond/waterfall that attracts birds.

 

[DaveC426913]

I think they've been abandoned. I've never seen any bird near my front garden. For all I know, they've been there since spring.

 

[BillTre]

Are/were the eggs warm?

 

[DaveC426913]

Are/were the eggs warm?

Well, it's about 27C (80F) here and - while it's a pretty hazy day - there's still direct sun, so they're warm like everything else is warm.

 

[dlgoff]

maybe a faint tinge of green, like the heron egg in this pic. No speckles. Matte finish.

So, don't you have a pic of the ones you found?

 

[DaveC426913]

So, don't you have a pic of the ones you found?

Well oops.

Attached.
(Yes, I moved one and put it back. Don't judge me.)

 

[dlgoff]

Well oops.

Attached.
(Yes, I moved one and put it back. Don't judge me.)

The one on the left reminds me of aggie marbles.

also, see: https://www.thefreedictionary.com/Aggie+(marble)

 

[DaveC426913]

The one on the left reminds me of aggie marbles.

?? They're solid white with no markings. They could pass for eggs from the grocery store.

 

[dlgoff]

?? They're solid white with no markings. They could pass for eggs from the grocery store.

Okay. The one on the left looked like it had some colored markings on it.