Rosemary Fletcher-Jones is quite right to be concerned about tortoises fed on a limited diet (Letters, 14 November), but fruit should be avoided or strictly limited for most species kept as pets. In addition, dandelions should only be part of a varied diet. I would direct tortoise owners to The Tortoise Table, a website that contains ample excellent advice as to how to feed them well.Martin KnightFakenham, Norfolk
In the kids’ quiz (15 November) the question “Why is there nothing Welsh on the union jack?” received the answer “When the flag was created, Wales had been conquered by England for so long, they were considered as one.” By England perhaps – not by Cymru!Copland SmithManchester
Is it any solace to those who needlessly lost their loved ones that in this report on the Covid debacle (‘Chaotic and indecisive’: key findings of report on UK’s Covid response under Tories, 20 November), Boris Johnson will now never be seen to have owned that Churchillian stature he so vainly tried to adopt?Robert JohnSaint-Pierre-des-Champs, France
Every time Boris Johnson appears in relation to the Covid inquiry, I’m reminded of the Arkell v Pressdram case: “Fuck off”.Robin Le MareAllithwaite, Cumbria
My late uncle, with whom I share a surname, was a bank manager (Letters, 20 November).Terry LoaneRuislip, London
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