Can anyone identify this flowering plant?

Pictures of it are here (my Flickr page):
http://www.flickr.com/photos/46001037@N02/

I'm in Scotland, and three of these have sprung up in my garden. It's reminiscent of a daffodil but has no trumpet and the leaves are far broader. I've had suggestions of wild tulip and of trout lily, but neither of these quite fit. Any ideas?

I want to check that it's not poisonous to my cat. k-l

 

hmmm, my best guess would be to agre with whoever said a species tulip of some sort, they look too tall and gangly but im thinking that may be due to lack of light?

 

Are they honey scented at all? Any violet striping on the back of the petals? Possibly could be Western Tein Shan - a miniature tulip that has 2-3 flowers per stem. They only grow about 5-6 inches in height, but the pics you have provided do look like they've stretched themselves out for light so not really going by the height.

 

Looks to me like a Dogs Tooth Violet,{Erythronium} but then again could be wrong:D

 

yes could be, most have more reflexed petals than that but i think your right

 

That's it! Lots of thanks to you Kandy. :thku:

Thank you all for answering. I was going to get some better photos but don't need to now. The Dogs Tooth Violet is exactly what it is! I looked it up and found that it's a member of the lily family. Lilies are very toxic to cats :( so pretty though the flower was, I have removed it from my garden. I'm very glad I checked it out and that my garden is safe my my cat again. k-l

Answering your other comments (many thanks for them):
They do (did) have plenty of light; the wall you can see in the photo is my house and is south facing. That spot get's all the sun that the sky can give. The flowers naturally bend to face diagonally downward (similar to the hang of daffodils). In the photos I've deliberately pushed the flower up in order to get a picture of the full front of the flower; it doesn't hang like that naturally. I noticed them for the first time 2 days before I took the photos and they looked the same. They looked the same today (4 days after my first sighting), so I'm guessing that's their full bloom stance. They have no scent that I can detect, and the back of the flower is the same colour as the front (pale yellow). This morning, just before I removed them, I noticed a well developed bud on the same stem as an already existing flower, so it has more than one flower per stem, which is consistent with Dogs Tooth Violet.

Thanks again all. This thread is my first post on this website and the response and expertise has been amazing. I'll be sticking around here methinks. :gnthb: