Nice to get a lens to assist with photography, birds are always on the move, and move that much quicker when humans are involved...
Starbucks Crumb Sucker, now that is a real cutie sitting so close having a chatter, reminds me of our female Mossie (Cape sparrow) which we have plenty in the garden, not quite so accommodating yet.
Try leaving some cookie crumbs for your Mossie... I think that Cape Sparrows are a very close relation to my little bird! :-)
We do put seed and brown bread out for the birds, feeder is under a low tree and next to a very thick bush they fly into hide when approaching. Have noticed some of the mossies will sit and watch from relatively close of late without taking off.