Provision an External List using feature (BCS)
Eric shared the xml schema to provision an external list using features. I believe everyone will find it useful so sharing it.
<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="https://schemas.microsoft.com/sharepoint/">
<ListInstance Title="title of list"
OnQuickLaunch="TRUE"
TemplateType="104"
FeatureId="SharePointFeatureId"
Url="lists/Url"
Description="Description">
<DataSource>
<Property Name="LobSystemInstance" Value="LobSystemInstance" />
<Property Name="EntityNamespace" Value="EntityNamespace" />
<Property Name="Entity" Value="EntityName" />
<Property Name="SpecificFinder" Value="SpecificFinder" />
<Property Name="Finder" Value="Finder" />
</DataSource>
</ListInstance>
</Elements>