Tits on the brain

When I said tits, I didn't mean the woman's bazookas, pervert....

Just kidding, anyway reason why I have tits on the brain is due to what I witnessed today, just after I finished my 10k run (which I did not enjoy in the least bit):

I was doing some cool down stretches by the lake, when I heard some particularly loud twittering noises - there are alot of bird habitats round this lake, but this was quite agitated. I looked round to see where the noise was coming from to find 2 teeny birds having a proper wrestling match on the pavement just metres from where I stood.

They were literally rolling around the ground and really going for each other! I couldn't believe what I was seeing! I knew I wasn't imagining it when a bloke came from the other direction and started staring in the same direction then remarked to his daugher how bizarre it was to see 2 little birds fighting like that.

I know birds get very territorial, but this was like WWF standards!

Not 100% sure what species they are, but having checked the RSPB website (where I nicked the above image - credits due aye?), I am pretty sure they were tits (in more ways than one).

Just cant tell from the coal, marsh or willow tit....