Different garden birds Home & Garden

I feed the birds at work, there's Robins, Finches, Blue Tits, Great Tits, Sparrows, Pigeons, Blackbirds & Magpies.
Do you know if birds breed with different species to make hybrid species, as there are what look like Finches X BlueTits/Great Tits, these birds have yellow breasts with the white stripes that finches have down the sides & there's also what look like Finches X Robins these have bright red breasts but have the finches stripes again down the sides.
Been trying to take photos but only the pigeons love having their photos taken.

Having had a quick google these are a couple I found:

http://en.allexperts.com/q/Wildlife-2507/birds.htm

https://uk.answers.yahoo.com/question/index?qid=20090603065459AA5mnNq

HTH

Thanks malka
Here few photos of birds not very good as using mobile
Blackbird


Robin


Tits


Pigeon

Have found garden birds hybrid site, the finches are common in cross breeding normally within the finches group of birds, but have been known to breed with tits as well, naughty male finches there are other birds too that have hybrid offsprings but they are mainly water fowl birds & chickens