T1 Petitioner/Appellant Timothy James Metrovich (Stepfather) appeals from an or'der denying his petition to adopt minor child K,L.C. without the consent of K.L.C.'s natural father, Respondent/Appellee Vincent Lee Coughran (Father). We 'find Stepfather failed to present clear and convincing evi *1164 dence that Father willfully failed to contribute to K.L.C.s support for twelve consecutive months out of the last fourteen months immediately preceding the filing of the petition for adoption. i

T 2 Stepfather filed a petition to adopt his stepdaughter, K.L.C., and an application for. an order determining K.L.C. eligible for adoption without Father's consent on January 18, 2015, The application alleged Father's consent was not needed for the adoption because he had (1) willfully. failed to contribute to the support of K.L.C. and (2) willfully failed to establish and/or maintain a substantial positive relationship with KL.G., both for a period of twelve consecutive months out of the fourteen months preceding the filing of the petition for adoption. After a hearing, the court found that Stepfather failed to meet his burden on both grounds and that K.L.C. was not eligible for adoption without Father's consent.

$8 Stepfather's sole proposition of error on appeal is that he presented clear and convincing evidence showing Father willfully failed to support K.L.C. 1 Title 10 O.S. 2011 § 7505-4.2 provides, in pertinent part:

B. Consent to adoption is not required from a parent who, for a period of twelve (12) consecutive months out of the last fourteen (14) months immediately preceding the filing of a petition for adoption of a child ... has willfully failed, refused, or neglected to contribute to the support of such minor: .

2. According to such parent's financial ability to contribute. to such minor's support if no provision for support is provided in an order.

The issue of willfulness is a question of fact. In re Adoption of D.L.A., 2008 OK CIV APP 7, ¶ 4, 62 P.3d 796, 798 (citation omitted). The burden was on Stepfather to present clear and convincing evidence to prove Father willfully failed to support K.L.C. In re Adoption of C.D.M., 2001 OK 103, ¶ 13; 39 P.3d 802, 807. On appeal, we review the record to determine whether Stepfather presented clear and convincing evidence and whether the trial court's findings are contrary to such clear and:convincing evidence. 2

T4 Stepfather fiotes that Father was gainfully employed during the relevant time period and that Father knew where Natural Mother worked and where her parents lived, yet Father never sent Mother any money. Despite , these facts, we find the frial court did not err when it found Stepfather failed to meet his burden. Father filed a petition to establish paternity, asking the court to determine paternity, set visitation, and establish child support payments, two and a half months prior to the filing of Stepfather's petition for adoption, 3 This demonstrates Father's willingness to provide support. See In re Adoption of D.L.A., 2008 OK CIV APP 7, ¶ 16, 62 P.3d at 800. Father also testified he purchased gifts for K.L.C. and set aside money for her support, but when he contacted Mother to discuss visitation and support, he received no response. Although Stepfather and Mother testified that Father did not contact her regarding support, "[the trial court is entitled to choose which testimony to believe as the judge has the advantage over this Court in observing the behavior and demeanor of the witnesses." Mueggenborg v. Walling, 1992 OK 121, ¶ 7, 836 P.2d 112, 114.

*1165 15 Upon review of the record, we find the trial court properly determined that Stepfather failed to show, by clear and convincing evidence, that Father had willfully failed to support K.L.C. The order denying Stepfather's petition to adopt without Father's consent is AFFIRMED.