I want to fetch birthdate from Yahoo's API

[snonceino]

I am using the Yahoo API, but I am not getting the birth dates of my contacts. What do I do?I am making an application in asp.net, and I want the birth dates to be fetched also.This is part of the JSON string I get:\[code\]created": "2012-04-16T16:08:30Z","updated": "2012-04-16T16:08:30Z","uri": "http://social.yahooapis.com/v1/user/RB5EYES5SQ6HZ22ZIHCJ5EIY5E/contact/33554861", "isConnection": "false", "id": "33554861", "fields": { "created": "2012-04-16T16:08:30Z", "updated": "2012-04-16T16:08:30Z", "uri": "http://social.yahooapis.com/v1/user/RB5EYES5SQ6HZ22ZIHCJ5EIY5E/contact/33554861/email/33555114", "id": "33555114", "type": "email", "value": "[email protected]", "editedBy": "OWNER"\[/code\]