Answer ... when that plane is flying near Russian air space.

More casualties of the war in Ukraine. An Azerbaijan Airlines plane was flying from Baku Azerbaijan to Grozny in Russia and probably unintentionally diverted course over an area where Moscow’s air defenses have been battling Ukraine drone attacks
Azerbaijan Airlines said the passenger jet may have collided with a flock of birds.
Looks like shrapnel holes to me.
https://i2-prod.dailyrecord.co.uk/incoming/article34375593.ece/ALTERNATES/s615b/2_PAY-Kazakhstan-plane-crash-1-East2west-News.png

https://i2-prod.dailyrecord.co.uk/incoming/article34375615.ece/ALTERNATES/s615b/1_PAY-Kazakhstan-plane-crash-4-East2west-News.png

Several hundred very small, tough birds that were moving really fast.