Identification please

[Amari]

For a couple of years our neighbours intermittently get half a dozen bees entering their dining room, probably from their disused chimney, but the source is uncertain. They have about half the BMI of a honey bee, are black with hardly discernible banding on their round abdomen and only very sparsely hairy. No white bum.
Grateful for identification - I was pleased to be able to deny that they're anything to do with me!
Apols for the poor pics. 2nd pic shows honeybee to the left, two black bees to the right.
Edit: Oops, can you open the first pic? If not, how do I transfer a pic from a received email to this post or to Photos on a Mac?

 

[Erichalfbee]

Just move it to your desk top

 

[enrico]

For a couple of years our neighbours intermittently get half a dozen bees entering their dining room, probably from their disused chimney, but the source is uncertain. They have about half the BMI of a honey bee, are black with hardly discernible banding on their round abdomen and only very sparsely hairy. No white bum.
Grateful for identification - I was pleased to be able to deny that they're anything to do with me!
Apols for the poor pics. 2nd pic shows honeybee to the left, two black bees to the right.
Edit: Oops, can you open the first pic? If not, how do I transfer a pic from a received email to this post or to Photos on a Mac?

I would imagine they are in the chimney. From the picture provided they look like honey bees!

 

[Wilco]

I would imagine they are in the chimney. From the picture provided they look like honey bees!

@Amari My first thought was 'how close to Blenheim are you?'

 

[drex]

Probably Mason bees. My neighbour has similar come down her chimney. The mortar in our houses is old, soft, lime mortar

 

[Amari]

I would imagine they are in the chimney. From the picture provided they look like honey bees!

No, they're half the size and have round abdos