Sal

Succeeding you mean

Very cool! I have yet to encounter my first Stentor!

Interesting. Thanks!

I wonder if UV illumination of the lichen would work to preferentially eliminate tiny animals. I think the algae is rather resistant when it is in the lichenized body.

Currently I am breaking up lichen into small pieces and placing the pieces into jars with sterilized water that contains some nutrients (ammonium sulfate, (di)ammonium phosphate, potassium sulfate). I place the jars through my apartment under different light conditions.

The idea is to preferentially grow algae by having low phosphate and exposing to the sun, dilute, grow again, dilute, and repeat a few times to purify. Similar to how I purify a wild mushroom through agar transfers. In the past I did succeed growing a bunch of Trebouxia but I left those jars standing for two years and now they have a wild mixture, so I am starting the process again.

Wow, this is amazing!!

Ah, now that I think about it I did add some nutrients to support algal growth, so these could be crystals.

perversions like ground roller pigeons

Oh..... wow. I looked them up and I am both amazed and saddened.

Interesting. I have some idea about how pigeons originally came to live in cities, but I don't know much about the state of dove breeding today.

I do see a lot of interesting doves near where I live, so I will pay more attention from now on to whether they have rings. Maybe I live close to a pigeon breeder. I have not seen the one in the picture again, so I hope it found its way back home.

As I approached to take the pictures it walked away first and then flew to a nearby spot. I didn't want to bother it anymore so I did not follow.

I didn't fully understand why it had a ring on its foot, as keeping track of all pigeons in the city seems ambitious. Does this mean that the bird likely comes from a breeder? You mentioned a 'dovecote' and I figured this meant its wild resting spot, but is this also the term for the place that breeders keep them in?

In that case I am afraid s/he might have been sick or very tired. S/he was reacting to me slowly and would close the eyes a lot as if falling asleep intermittently. Gave me the impression of youth because the reactions felt like those of a baby bird.

No I won't ;)