This is a fine article on the topic of spirits returning in disguise "by Hollister Rand"  

How Spirits Use Nature to Say Hello

 by Hollister Rand

 "A hummingbird came right up to my face, twit, twit, twit, and then pfft, took off.

'Mom,' I responded, 'you've got to talk more slowly;

I didn't understand anything you said!'"
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