You can automate this by
Build Data View
Create System Communication.
{{ 'Global' | Attribute:'EmailHeader' }}<p>Hello {{ Person.NickName }}, <br>
These children have birthdays in the next week.</p>
Then Insert lava to the template:

(edit dataview number).
*To show the results of the data view with links to the person profiles:
{% person dataview:'811' %}
<p>There were {{personItems | Size}} people tagged as New from FTGYouth this week:</p>
{% for person in personItems %}
<a href='{{ 'Global' | Attribute:'InternalApplicationRoot' }}Person/{{ person.Id }}'><b>{{ person.FullName }}</b></a> ({{person.AgeClassification }})<br/>
{% endfor %}
{% endperson %}
- Create a System Job. Job Type will be Send Group Email. Group-select a group where you list the people who will receive the notice. Choose the system communication and set the time.