Poisonous houseplants?

cgnarly

 A few days ago I decided to take care of some of my neighbors house plants. I don’t know what exactly they all are but today I found a dead bird next to these plants and I’ve never had this occasion. I have two birdfeeders and bird bath as well though I feel this isn’t the reason I feel it has to do with these plants. The bird was bleeding from his mouth when I found it 

pansyface

I don’t recognise the bird. I take it you don’t live in UK?

Maybe the bird flew into a glass window?

Here in Britain there is a disease called Trichomoniasis which affects birds’ throats, making them blister and bleed.

cgnarly

thank you, I believe its a cedar waxwing.. I didnt hear any collison within the time it appeared there but maybe

madpenguin

I don't think the plants have anything to do with the death of the bird.As far as I know birds would not be eating these plants,no seeds or fruits on them,just leaves.Even a poisonous berry would take a while to kill a bird.
I think it is simply the bird has flown into the window,hence the blood from the beak.

Dovefromabove

I agree ... we found a dead thrush which had flown into the big studio window, having mistaken the reflection of the sky for the real thing. It had blood around its beak. 
We put stickers in the shape of birds of prey on the window and it’s not happened since, thankfully.