Deserialize XML response from Web API into a console app

From a console app, I make a call to a Web API. The API returns an IEnumerable<Foo> as XML. The XML response looks like this:

<ArrayOfFoo xmlns:i="..." xmlns="....">
    <Foo>
        <Member1>First Foo</Member1>
        <Member2>Yes</Member2>
        ...
    </Foo>

    <Foo>
        ...
    </Foo>
</ArrayOfFoo>

When I try to deserialize it in the console app into a List<Foo>, it doesn't work. The exception reported is:

<ArrayOfFoo xmlns='http://ift.tt/1CyqgmO'> was not expected.

Here's the code I use to deserialize the response:

string xml;
using(var reader = new StreamReader(responseStream))
{
    xml = reader.ReadToEnd();
}

// deserialize into shape IEnumerable<T>
var listOfFoos = new List<Foo>();
var resultType = listOfFoos.GetType();
var serializer = new XmlSerializer(resultType);

var doc = XDocument.Parse(xml);
using(var reader = doc.CreateReader())
{
    listOfFoos = serializer.Deserialize(reader) as List<Foo>;
}

return listOfFoos;

Note: I use the old HttpWebRequest to make the HTTP request and get a response from the API. No particular reason for choosing this and not choosing the HTTPClient.